[MM-47821]: fix searchUserCmdF to return proper errors (#24700)

* fix: fix searchUserCmdF to return proper errors

* fix: fix broken tests

* fix: fix go-ci issues

* fix: fix more broken tests

* fix: fix wrong function call on error getting user test

* fix: fix e2e test

---------

Co-authored-by: Mattermost Build <build@mattermost.com>

server/cmd/mmctl/commands/user.go

@@ -693,6 +693,7 @@ func searchUserCmdF(c client.Client, cmd *cobra.Command, args []string) error {
 	users, err := getUsersFromArgs(c, args)
 	if err != nil {
 		printer.PrintError(err.Error())
+		return err
 	}
 
 	for i, user := range users {