deps: Remove Python 3.7 and 3.8 as supported runtimes (#1395)

* deps: Remove Python 3.7 and 3.8 as supported runtimes * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md * fix build * update required check --------- Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: rahul2393

.github/sync-repo-settings.yaml

@@ -11,5 +11,5 @@ branchProtectionRules:
  - 'Kokoro system-3.12'
  - 'cla/google'
  - 'Samples - Lint'
- - 'Samples - Python 3.8'
+ - 'Samples - Python 3.9'
  - 'Samples - Python 3.12'

.github/workflows/presubmit.yaml

@@ -17,7 +17,7 @@ jobs:
  - name: Setup Python
  uses: actions/setup-python@v5
  with:
- python-version: 3.8
+ python-version: 3.9
  - name: Install nox
  run: python -m pip install nox
  - name: Check formatting
@@ -27,7 +27,7 @@ jobs:
  strategy:
  fail-fast: false
  matrix:
- python: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+ python: ["3.9", "3.10", "3.11", "3.12", "3.13"]
 
  steps:
  - name: Checkout code