run black formmatter

Signed-off-by: Zack Koppert <[email protected]>

stale_repos.py

@@ -154,18 +154,19 @@ def get_active_date(repo):
     activity_method = os.getenv("ACTIVITY_METHOD", "pushed").lower()
     if activity_method == "default_branch_updated":
         commit = repo.branch(repo.default_branch).commit
-        active_date = parse(commit.commit.as_dict()['committer']['date'])
+        active_date = parse(commit.commit.as_dict()["committer"]["date"])
     elif activity_method == "pushed":
         last_push_str = repo.pushed_at  # type: ignored
         if last_push_str is None:
             return None
         active_date = parse(last_push_str)
     else:
-        raise ValueError(f"""
+        raise ValueError(
+            f"""
                          ACTIVITY_METHOD environment variable has unsupported value: '{activity_method}'.
                          Allowed values are: 'pushed' and 'default_branch_updated'
                          """
-                         )
+        )
     return active_date