chore: update required presubmit checks (#713)

Author: parthea

.github/sync-repo-settings.yaml

@@ -15,13 +15,17 @@ branchProtectionRules:
     - 'unit (3.8)'
     - 'unit (3.9)'
     - 'unit (3.10)'
+    - 'unit (3.11)'
+    - 'unit (3.12)'
     - 'cover'
     - 'Kokoro'
     - 'Samples - Lint'
     - 'Samples - Python 3.7'
     - 'Samples - Python 3.8'
     - 'Samples - Python 3.9'
     - 'Samples - Python 3.10'
+    - 'Samples - Python 3.11'
+    - 'Samples - Python 3.12'
 permissionRules:
   - team: actools-python
     permission: admin