Bump actions/setup-python from 2.2.2 to 2.3.1 (#55)

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 2.2.2 to 2.3.1.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v2.2.2...v2.3.1)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

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

.github/workflows/release.yml

@@ -8,7 +8,7 @@ jobs:
     steps:
       - uses: actions/checkout@master
       - name: Set up Python 3.8
-        uses: actions/setup-python@v2.2.2
+        uses: actions/setup-python@v2.3.1
         with:
           python-version: 3.8
       - name: Install dependencies

.github/workflows/test.yml

@@ -8,7 +8,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Set up Python
-        uses: actions/setup-python@v2.2.2
+        uses: actions/setup-python@v2.3.1
         with:
           python-version: 3.8
       - name: Install dependencies
@@ -24,7 +24,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2.2.2
+      uses: actions/setup-python@v2.3.1
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
@@ -37,7 +37,7 @@ jobs:
     steps:
       - uses: actions/checkout@master
       - name: Setup Python
-        uses: actions/setup-python@v2.2.2
+        uses: actions/setup-python@v2.3.1
         with:
           python-version: 3.8
       - name: Install dependencies