Merge pull request #221 from bgilbert/checkout

workflows: update `actions/checkout` to v4

Author: bgilbert

.github/workflows/python.yml

@@ -18,7 +18,7 @@ jobs:
     name: Rerun pre-commit checks
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: actions/setup-python@v4
       with:
         python-version: '3.11'
@@ -33,7 +33,7 @@ jobs:
         python-version: [3.8, 3.9, "3.10", "3.11"]
     steps:
     - name: Check out repo
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with:
@@ -73,7 +73,7 @@ jobs:
         python-arch: [x86, x64]
     steps:
     - name: Check out repo
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }} ${{ matrix.python-arch }}
       uses: actions/setup-python@v4
       with:
@@ -129,7 +129,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Check out repo
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Set up Python
       uses: actions/setup-python@v4
       with: