Merge pull request #353 from mj-will/update-ci

Update checkout action to v4

.github/workflows/compatibility-tests.yml

@@ -19,7 +19,7 @@ jobs:
 
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python
       uses: actions/setup-python@v4
       with:

.github/workflows/integration-tests.yml

@@ -22,7 +22,7 @@ jobs:
     runs-on: ${{ matrix.os }}-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with:

.github/workflows/lint.yml

@@ -15,7 +15,7 @@ jobs:
     name: Lint - Black
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: psf/black@stable
         with:
           options: "--check --diff"
@@ -24,7 +24,7 @@ jobs:
     name: Lint - Flake8
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python
       uses: actions/setup-python@v4
       with:

.github/workflows/publish-to-pypi.yml

@@ -9,7 +9,7 @@ jobs:
     name: Build and publish Python 🐍 distributions 📦 to PyPI
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python
       uses: actions/setup-python@v4
       with:

.github/workflows/tests.yml

@@ -22,7 +22,7 @@ jobs:
     runs-on: ${{ matrix.os }}-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with: