fix(auto-backport) wrong target branch

Auto backport failed while searching for the wrong release branch name
(it was looking for `master2024.2` instead of `branch-2024.2`

Fixing it

.github/scripts/auto-backport.py

@@ -181,7 +181,7 @@ def main():
         logging.info(f"Found PR #{pr.number} with commit {commits} and the following labels: {backport_labels}")
         for backport_label in backport_labels:
             version = backport_label.replace('backport/', '')
-            backport_base_branch = backport_label.replace('backport/', 'master')
+            backport_base_branch = backport_label.replace('backport/', 'branch-')
             backport(repo, pr, version, commits, backport_base_branch)