chore: remove samples test against 3.7, 3.9, 3.10, 3.11 as required c…

…hecks (#1062)

* chore: dummy commit

* chore: edit yaml

* chore: revert lint

* chore: remove python versions

* chore: reduce emulator version to 1.5.12

* chore: revert to latest

.github/sync-repo-settings.yaml

@@ -11,9 +11,5 @@ branchProtectionRules:
     - 'Kokoro system-3.8'
     - 'cla/google'
     - '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'