MM-23646: Improve group sync performance. (#14171)

Co-authored-by: mattermod <mattermod@users.noreply.github.com>

.gitignore

@@ -56,6 +56,7 @@ _testmain.go
 # Log files
 *.log
 *.log.jsonl
+*.log.gz
 
 # Fuzz binaries and working dir
 *fuzz.zip