Bump actions/setup-python from 3 to 4 (#3583)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/release.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: Switch to using Python 3.8 by default
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v4
         with:
           python-version: 3.8
       - name: Install tox

.github/workflows/tox.yml

@@ -77,7 +77,7 @@ jobs:
           && source foo/bin/activate \
           && ansible --version
       - name: Install a default Python
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies