Chore: Remove Py3.7+3.8 Support (#1573)

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Fixes #1563

Author: abbrowne126

.github/sync-repo-settings.yaml

@@ -11,8 +11,6 @@ branchProtectionRules:
     - 'Kokoro - Against Pub/Sub Lite samples'
     - 'cla/google'
     - 'Samples - Lint'
-    - 'Samples - Python 3.7'
-    - 'Samples - Python 3.8'
     - 'Samples - Python 3.9'
     - 'Samples - Python 3.10'
     - 'Samples - Python 3.11'
@@ -21,8 +19,6 @@ branchProtectionRules:
     - 'docs'
     - 'docfx'
     - 'lint'
-    - 'unit (3.7)'
-    - 'unit (3.8)'
     - 'unit (3.9)'
     - 'unit (3.10)'
     - 'unit (3.11)'

.github/workflows/docs.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
     - name: Setup Python
       uses: actions/setup-python@v6
       with:
@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
     - name: Setup Python
       uses: actions/setup-python@v6
       with:

.github/workflows/unittest.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-22.04
     strategy:
       matrix:
-        python: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12', '3.13', '3.14']
+        python: ['3.9', '3.10', '3.11', '3.12', '3.13', '3.14']
     steps:
     - name: Checkout
       uses: actions/checkout@v4