bin/ci: Fix SyntaxWarning about return in finally block

Remove the finally block with a return statement in GitlabGQL.query()
method. This pattern causes a SyntaxWarning in Python 3.14 as the return
in finally will override any return value or exception from the try/except
blocks.

Move the return statement to the end of the except block where it belongs,
maintaining the same error recovery behavior while fixing the warning.

Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38123>

bin/ci/gitlab_gql.py

@@ -106,7 +106,6 @@ class GitlabGQL:
             logging.error(traceback_str)
             self.invalidate_query_cache()
             logging.error("Cache invalidated, retrying without cache")
-        finally:
             return run_uncached()
 
     def _query(