refactor: optimize git fetch process

- replace direct git fetch call with origin.fetch method for better error handling
- use fetch result to check for new commits instead of comparing HEAD with active branch

🤖

lib/helper.py

@@ -59,13 +59,13 @@ def update_git_repo(repo_path: str, ignore_git_status: bool) -> bool:
     if not ignore_git_status:
         # try to fetch latest changes
         try:
-            repo.git.fetch()
+            fetch_res = repo.remotes.origin.fetch()[0]
         except git.exc.GitCommandError as e:
             log.error(str(e))
             return False
 
         # check for new commits
-        if repo.rev_parse("HEAD") == repo.rev_parse(f"origin/{repo.active_branch}"):
+        if not fetch_res.old_commit:
             log.info("no changes - skipping")
             return False