Build(deps): Bump actions/setup-python from 3 to 4 (#570)

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

Author: dependabot[bot]

.github/workflows/tests.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - uses: actions/setup-python@v3
+    - uses: actions/setup-python@v4
       with:
         python-version: 3.9
     - uses: pre-commit/[email protected]
@@ -39,7 +39,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v3
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
         cache: "pip"
@@ -70,7 +70,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - name: Set up Python
-      uses: actions/setup-python@v3
+      uses: actions/setup-python@v4
       with:
         python-version: '3.7'
         cache: "pip"
@@ -115,7 +115,7 @@ jobs:
       - name: Checkout source
         uses: actions/checkout@v3
       - name: Set up Python 3.7
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v4
         with:
           python-version: 3.7