chore: use python 3.9 for docs builds [autoapprove]

.github/.OwlBot.lock.yaml

@@ -13,4 +13,4 @@
 # limitations under the License.
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-python:latest
-  digest: sha256:452901c74a22f9b9a3bd02bce780b8e8805c97270d424684bff809ce5be8c2a2
+  digest: sha256:6244cdf9848ec661b48e5b626123ee9f6f8eb80adc9d42d7cd3c243d4ddaea79

.github/workflows/docs.yml

@@ -12,7 +12,7 @@ jobs:
     - name: Setup Python
       uses: actions/setup-python@v4
       with:
-        python-version: "3.10"
+        python-version: "3.9"
     - name: Install nox
       run: |
         python -m pip install --upgrade setuptools pip wheel
@@ -28,7 +28,7 @@ jobs:
     - name: Setup Python
       uses: actions/setup-python@v4
       with:
-        python-version: "3.10"
+        python-version: "3.9"
     - name: Install nox
       run: |
         python -m pip install --upgrade setuptools pip wheel

.github/workflows/lint.yml

@@ -12,7 +12,7 @@ jobs:
     - name: Setup Python
       uses: actions/setup-python@v4
       with:
-        python-version: "3.10"
+        python-version: "3.8"
     - name: Install nox
       run: |
         python -m pip install --upgrade setuptools pip wheel

.github/workflows/unittest.yml

@@ -41,7 +41,7 @@ jobs:
     - name: Setup Python
       uses: actions/setup-python@v4
       with:
-        python-version: "3.10"
+        python-version: "3.8"
     - name: Install coverage
       run: |
         python -m pip install --upgrade setuptools pip wheel

.kokoro/docker/docs/Dockerfile

@@ -60,16 +60,16 @@ RUN apt-get update \
   && rm -rf /var/lib/apt/lists/* \
   && rm -f /var/cache/apt/archives/*.deb
 
-###################### Install python 3.8.11
+###################### Install python 3.9.13
 
-# Download python 3.8.11
-RUN wget https://www.python.org/ftp/python/3.8.11/Python-3.8.11.tgz
+# Download python 3.9.13
+RUN wget https://www.python.org/ftp/python/3.9.13/Python-3.9.13.tgz
 
 # Extract files
-RUN tar -xvf Python-3.8.11.tgz
+RUN tar -xvf Python-3.9.13.tgz
 
-# Install python 3.8.11
-RUN ./Python-3.8.11/configure --enable-optimizations
+# Install python 3.9.11
+RUN ./Python-3.9.13/configure --enable-optimizations
 RUN make altinstall
 
 ###################### Install pip

.kokoro/requirements.txt

@@ -94,9 +94,9 @@ charset-normalizer==2.1.1 \
     --hash=sha256:5a3d016c7c547f69d6f81fb0db9449ce888b418b5b9952cc5e6e66843e9dd845 \
     --hash=sha256:83e9a75d1911279afd89352c68b45348559d1fc0506b054b346651b5e7fee29f
     # via requests
-click==8.0.4 \
-    --hash=sha256:6a7a62563bbfabfda3a38f3023a1db4a35978c0abd76f6c9605ecd6554d6d9b1 \
-    --hash=sha256:8458d7b1287c5fb128c90e23381cf99dcde74beaf6c7ff6384ce84d6fe090adb
+click==8.1.3 \
+    --hash=sha256:7682dc8afb30297001674575ea00d1814d808d6a36af415a82bd481d37ba7b8e \
+    --hash=sha256:bb4d8133cb15a609f44e8213d9b391b0809795062913b383c62be0ee95b1db48
     # via
     #   gcp-docuploader
     #   gcp-releasetool

noxfile.py

@@ -272,7 +272,7 @@ def cover(session):
     session.run("coverage", "erase")
 
 
-@nox.session(python=DEFAULT_PYTHON_VERSION)
+@nox.session(python="3.9")
 def docs(session):
     """Build the docs for this library."""
 
@@ -298,7 +298,7 @@ def docs(session):
     )
 
 
-@nox.session(python=DEFAULT_PYTHON_VERSION)
+@nox.session(python="3.9")
 def docfx(session):
     """Build the docfx yaml files for this library."""