Update to github.com/blang/semver/v4 (#24203)

server/channels/app/plugin_install.go

@@ -90,7 +90,7 @@ import (
 	"os"
 	"path/filepath"
 
-	"github.com/blang/semver"
+	"github.com/blang/semver/v4"
 
 	"github.com/mattermost/mattermost/server/public/model"
 	"github.com/mattermost/mattermost/server/public/shared/mlog"