🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

Author: gcf-owl-bot[bot]

noxfile.py

@@ -67,7 +67,8 @@
     ],
     "3.11": [],
     "3.12": [
-        "['bqstorage', 'spanner_graphs']",
+        "bqstorage",
+        "spanner_graphs",
     ],
     "3.13": [
         "bqstorage",
@@ -105,7 +106,8 @@
     ],
     "3.11": [],
     "3.12": [
-        "['bqstorage', 'spanner_graphs']",
+        "bqstorage",
+        "spanner_graphs",
     ],
     "3.13": [
         "bqstorage",