[Fix](ci)When the automatic cherry-pick fails, delete the temporary b…

…ranch

tools/auto-pick-script.py

@@ -110,4 +110,7 @@
     print(f"Conflict occurred while cherry-picking commit {merge_commit_sha}.")
     # Add conflict label
     pr.add_to_labels(CONFLICT_LABEL)
-    print(f"Added label '{CONFLICT_LABEL}' to PR #{pr.number} due to conflict.")
+    print(f"Added label '{CONFLICT_LABEL}' to PR #{pr.number} due to conflict.")
+    subprocess.run(["git", "checkout", "master", "-f"], cwd=repo_dir, check=True)
+    subprocess.run(["git", "branch", "-D", new_branch_name], cwd=repo_dir)
+    subprocess.run(["git", "push", "origin", "--delete", new_branch_name], cwd=repo_dir)