Bump actions/setup-python from 2.3.2 to 3

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 2.3.2 to 3.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v2.3.2...v3)

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

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
           - "pydocstyle ."
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/setup-python@v2.3.2
+      - uses: actions/setup-python@v3
       - uses: actions/checkout@v2.4.0
       - uses: actions/cache@v2.1.7
         with:
@@ -36,7 +36,7 @@ jobs:
   readme:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/setup-python@v2.3.2
+      - uses: actions/setup-python@v3
       - uses: actions/checkout@v2.4.0
       - name: Install Python dependencies
         run: python -m pip install --upgrade pip setuptools wheel twine readme-renderer
@@ -64,7 +64,7 @@ jobs:
 
     steps:
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2.3.2
+      uses: actions/setup-python@v3
       with:
         python-version: ${{ matrix.python-version }}
     - uses: actions/checkout@v2.4.0
@@ -88,7 +88,7 @@ jobs:
           - slugify
 
     steps:
-      - uses: actions/setup-python@v2.3.2
+      - uses: actions/setup-python@v3
       - uses: actions/checkout@v2.4.0
       - name: Install Python dependencies
         run: |

.github/workflows/release.yml

@@ -8,7 +8,7 @@ jobs:
   PyPI:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/setup-python@v2.3.2
+      - uses: actions/setup-python@v3
       - uses: actions/checkout@v2.4.0
       - name: Install Python dependencies
         run: python -m pip install --upgrade pip setuptools wheel twine