ci: use different reference for fetched label in has_label

.github/helper/roulette.py

@@ -9,7 +9,7 @@ from functools import lru_cache
 
 
 @lru_cache(maxsize=None)
-def fetch_pr_data(pr_number, repo, endpoint):
+def fetch_pr_data(pr_number, repo, endpoint=""):
 	api_url = f"https://api.github.com/repos/{repo}/pulls/{pr_number}"
 
 	if endpoint:
@@ -37,7 +37,7 @@ def has_run_ui_tests_label(pr_number, repo="frappe/frappe"):
 	return has_label(pr_number, "Run UI Tests", repo)
 
 def has_label(pr_number, label, repo="frappe/frappe"):
-	return any([label["name"] for label in fetch_pr_data(pr_number, repo, "")["labels"] if label["name"] == label])
+	return any([fetched_label["name"] for fetched_label in fetch_pr_data(pr_number, repo)["labels"] if fetched_label["name"] == label])
 
 def is_py(file):
 	return file.endswith("py")