upgrade(actions): upgrade checkout and setup-python (#788)

GitHub deprecated Node 12 to Node 16. The current versions of checkout and setup-python GitHub actions depend on a depricated version of Node.

I cut a release as a test [here](https://github.com/reddit/baseplate.py/actions/runs/4985027857), the build failed because of a bad tag, but did run. [Here](https://github.com/reddit/baseplate.py/actions/runs/4963056617) is the previous failure.

This also upgrades pins the version of requests being used during build time, this is necessary for the package to be successfully uploaded.

#787 applies this change to the gcp build.

.github/workflows/python-publish.yaml

@@ -10,17 +10,17 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
 
     - name: Set up Python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v3
       with:
         python-version: '3.8'
 
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install setuptools==47.3.0 wheel==0.34.2 twine==3.1.1
+        python -m pip install setuptools==47.3.0 wheel==0.34.2 twine==3.1.1 requests==2.29.0
 
     - name: Build and publish
       env: