updated python version in Github Actions

Author: daniel-sanche

.github/workflows/conformance.yaml

@@ -25,7 +25,7 @@ jobs:
     strategy:
       matrix:
         test-version: [ "v0.0.4" ]
-        py-version: [ 3.8 ]
+        py-version: [ 3.9 ]
         client-type: [ "async", "sync"]
         # None of the clients currently support reverse scans, execute query plan refresh, retry info, or routing cookie
         include:

.github/workflows/lint.yml

@@ -12,7 +12,7 @@ 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 --upgrade setuptools pip wheel

.github/workflows/mypy.yml

@@ -12,7 +12,7 @@ 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 --upgrade setuptools pip wheel

.github/workflows/system_emulated.yml

@@ -17,7 +17,7 @@ jobs:
     - name: Setup Python
       uses: actions/setup-python@v5
       with:
-        python-version: '3.8'
+        python-version: '3.9'
 
     - name: Setup GCloud SDK
       uses: google-github-actions/setup-gcloud@v2.1.1

.github/workflows/unittest.yml

@@ -45,7 +45,7 @@ jobs:
     - name: Setup Python
       uses: actions/setup-python@v5
       with:
-        python-version: "3.8"
+        python-version: "3.9"
     - name: Install coverage
       run: |
         python -m pip install --upgrade setuptools pip wheel