MM-36271: Bump major version to 6.0 (#17973)

https://mattermost.atlassian.net/browse/MM-36271

```release-note
We bump the major version to 6.0
```

services/sharedchannel/attachment.go

@@ -10,9 +10,9 @@ import (
 	"fmt"
 	"sync"
 
-	"github.com/mattermost/mattermost-server/v5/model"
-	"github.com/mattermost/mattermost-server/v5/services/remotecluster"
-	"github.com/mattermost/mattermost-server/v5/shared/mlog"
+	"github.com/mattermost/mattermost-server/v6/model"
+	"github.com/mattermost/mattermost-server/v6/services/remotecluster"
+	"github.com/mattermost/mattermost-server/v6/shared/mlog"
 )
 
 // postsToAttachments returns the file attachments for a slice of posts that need to be synchronized.

services/sharedchannel/channelinvite.go

@@ -9,10 +9,10 @@ import (
 	"fmt"
 	"strings"
 
-	"github.com/mattermost/mattermost-server/v5/app/request"
-	"github.com/mattermost/mattermost-server/v5/model"
-	"github.com/mattermost/mattermost-server/v5/services/remotecluster"
-	"github.com/mattermost/mattermost-server/v5/shared/mlog"
+	"github.com/mattermost/mattermost-server/v6/app/request"
+	"github.com/mattermost/mattermost-server/v6/model"
+	"github.com/mattermost/mattermost-server/v6/services/remotecluster"
+	"github.com/mattermost/mattermost-server/v6/shared/mlog"
 )
 
 // channelInviteMsg represents an invitation for a remote cluster to start sharing a channel.

services/sharedchannel/channelinvite_test.go

@@ -13,10 +13,10 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
-	"github.com/mattermost/mattermost-server/v5/model"
-	"github.com/mattermost/mattermost-server/v5/plugin/plugintest/mock"
-	"github.com/mattermost/mattermost-server/v5/shared/mlog"
-	"github.com/mattermost/mattermost-server/v5/store/storetest/mocks"
+	"github.com/mattermost/mattermost-server/v6/model"
+	"github.com/mattermost/mattermost-server/v6/plugin/plugintest/mock"
+	"github.com/mattermost/mattermost-server/v6/shared/mlog"
+	"github.com/mattermost/mattermost-server/v6/store/storetest/mocks"
 )
 
 type mockLogger struct {

services/sharedchannel/mock_AppIface_test.go

@@ -5,12 +5,12 @@
 package sharedchannel
 
 import (
-	filestore "github.com/mattermost/mattermost-server/v5/shared/filestore"
+	filestore "github.com/mattermost/mattermost-server/v6/shared/filestore"
 	mock "github.com/stretchr/testify/mock"
 
-	model "github.com/mattermost/mattermost-server/v5/model"
+	model "github.com/mattermost/mattermost-server/v6/model"
 
-	request "github.com/mattermost/mattermost-server/v5/app/request"
+	request "github.com/mattermost/mattermost-server/v6/app/request"
 )
 
 // MockAppIface is an autogenerated mock type for the AppIface type

services/sharedchannel/mock_ServerIface_test.go

@@ -5,14 +5,14 @@
 package sharedchannel
 
 import (
-	mlog "github.com/mattermost/mattermost-server/v5/shared/mlog"
+	mlog "github.com/mattermost/mattermost-server/v6/shared/mlog"
 	mock "github.com/stretchr/testify/mock"
 
-	model "github.com/mattermost/mattermost-server/v5/model"
+	model "github.com/mattermost/mattermost-server/v6/model"
 
-	remotecluster "github.com/mattermost/mattermost-server/v5/services/remotecluster"
+	remotecluster "github.com/mattermost/mattermost-server/v6/services/remotecluster"
 
-	store "github.com/mattermost/mattermost-server/v5/store"
+	store "github.com/mattermost/mattermost-server/v6/store"
 )
 
 // MockServerIface is an autogenerated mock type for the ServerIface type

services/sharedchannel/msg.go

@@ -6,7 +6,7 @@ package sharedchannel
 import (
 	"encoding/json"
 
-	"github.com/mattermost/mattermost-server/v5/model"
+	"github.com/mattermost/mattermost-server/v6/model"
 )
 
 // syncMsg represents a change in content (post add/edit/delete, reaction add/remove, users).

services/sharedchannel/permalink.go

@@ -9,9 +9,9 @@ import (
 	"regexp"
 	"strings"
 
-	"github.com/mattermost/mattermost-server/v5/model"
-	"github.com/mattermost/mattermost-server/v5/shared/i18n"
-	"github.com/mattermost/mattermost-server/v5/shared/mlog"
+	"github.com/mattermost/mattermost-server/v6/model"
+	"github.com/mattermost/mattermost-server/v6/shared/i18n"
+	"github.com/mattermost/mattermost-server/v6/shared/mlog"
 )
 
 var (

services/sharedchannel/permalink_test.go

@@ -10,10 +10,10 @@ import (
 
 	"github.com/stretchr/testify/assert"
 
-	"github.com/mattermost/mattermost-server/v5/model"
-	"github.com/mattermost/mattermost-server/v5/plugin/plugintest/mock"
-	"github.com/mattermost/mattermost-server/v5/store/storetest/mocks"
-	"github.com/mattermost/mattermost-server/v5/utils"
+	"github.com/mattermost/mattermost-server/v6/model"
+	"github.com/mattermost/mattermost-server/v6/plugin/plugintest/mock"
+	"github.com/mattermost/mattermost-server/v6/store/storetest/mocks"
+	"github.com/mattermost/mattermost-server/v6/utils"
 )
 
 func TestProcessPermalinkToRemote(t *testing.T) {

services/sharedchannel/service.go

@@ -10,12 +10,12 @@ import (
 	"sync"
 	"time"
 
-	"github.com/mattermost/mattermost-server/v5/app/request"
-	"github.com/mattermost/mattermost-server/v5/model"
-	"github.com/mattermost/mattermost-server/v5/services/remotecluster"
-	"github.com/mattermost/mattermost-server/v5/shared/filestore"
-	"github.com/mattermost/mattermost-server/v5/shared/mlog"
-	"github.com/mattermost/mattermost-server/v5/store"
+	"github.com/mattermost/mattermost-server/v6/app/request"
+	"github.com/mattermost/mattermost-server/v6/model"
+	"github.com/mattermost/mattermost-server/v6/services/remotecluster"
+	"github.com/mattermost/mattermost-server/v6/shared/filestore"
+	"github.com/mattermost/mattermost-server/v6/shared/mlog"
+	"github.com/mattermost/mattermost-server/v6/store"
 )
 
 const (

services/sharedchannel/sync_recv.go

@@ -11,10 +11,10 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/mattermost/mattermost-server/v5/app/request"
-	"github.com/mattermost/mattermost-server/v5/model"
-	"github.com/mattermost/mattermost-server/v5/services/remotecluster"
-	"github.com/mattermost/mattermost-server/v5/shared/mlog"
+	"github.com/mattermost/mattermost-server/v6/app/request"
+	"github.com/mattermost/mattermost-server/v6/model"
+	"github.com/mattermost/mattermost-server/v6/services/remotecluster"
+	"github.com/mattermost/mattermost-server/v6/shared/mlog"
 )
 
 func (scs *Service) onReceiveSyncMessage(msg model.RemoteClusterMsg, rc *model.RemoteCluster, response *remotecluster.Response) error {

services/sharedchannel/sync_send.go

@@ -8,10 +8,10 @@ import (
 	"fmt"
 	"time"
 
-	"github.com/mattermost/mattermost-server/v5/model"
-	"github.com/mattermost/mattermost-server/v5/services/remotecluster"
-	"github.com/mattermost/mattermost-server/v5/shared/i18n"
-	"github.com/mattermost/mattermost-server/v5/shared/mlog"
+	"github.com/mattermost/mattermost-server/v6/model"
+	"github.com/mattermost/mattermost-server/v6/services/remotecluster"
+	"github.com/mattermost/mattermost-server/v6/shared/i18n"
+	"github.com/mattermost/mattermost-server/v6/shared/mlog"
 )
 
 type syncTask struct {

services/sharedchannel/sync_send_remote.go

@@ -11,9 +11,9 @@ import (
 
 	"github.com/wiggin77/merror"
 
-	"github.com/mattermost/mattermost-server/v5/model"
-	"github.com/mattermost/mattermost-server/v5/services/remotecluster"
-	"github.com/mattermost/mattermost-server/v5/shared/mlog"
+	"github.com/mattermost/mattermost-server/v6/model"
+	"github.com/mattermost/mattermost-server/v6/services/remotecluster"
+	"github.com/mattermost/mattermost-server/v6/shared/mlog"
 )
 
 type sendSyncMsgResultFunc func(syncResp SyncResponse, err error)

services/sharedchannel/util.go

@@ -7,7 +7,7 @@ import (
 	"fmt"
 	"strings"
 
-	"github.com/mattermost/mattermost-server/v5/model"
+	"github.com/mattermost/mattermost-server/v6/model"
 )
 
 // fixMention replaces any mentions in a post for the user with the user's real username.