Update actions/setup-python requirement to v2.2.1

Updates the requirements on [actions/setup-python](https://github.com/actions/setup-python) to permit the latest version.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](https://github.com/actions/setup-python/commits/3105fb18c05ddd93efea5f9e0bef7a03a6e9e7df)

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/release.yml

@@ -9,7 +9,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2.3.4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v2.2.1
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install gettext

.github/workflows/tests.yml

@@ -13,7 +13,7 @@ jobs:
     steps:
       - name: Install gettext
         run: sudo apt-get install gettext -y
-      - uses: actions/setup-python@v2
+      - uses: actions/setup-python@v2.2.1
       - run: python -m pip install --upgrade pip setuptools wheel twine readme-renderer
       - uses: actions/checkout@v2.3.4
       - run: python setup.py sdist bdist_wheel
@@ -32,7 +32,7 @@ jobs:
           - "3.1"
     steps:
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v2.2.1
       with:
         python-version: ${{ matrix.python-version }}
     - uses: actions/checkout@v2.3.4