CI: use actions/checkout@v4

.github/workflows/black.yml

@@ -10,7 +10,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
       - uses: psf/black@22.12.0
         with:

.github/workflows/codeql-analysis.yml

@@ -36,7 +36,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL

.github/workflows/curlylint.yaml

@@ -10,7 +10,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Install curlylint
         run: pip install curlylint

.github/workflows/django-tests.yml

@@ -23,7 +23,7 @@ jobs:
         ports:
           - 5432:5432
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python
       uses: actions/setup-python@v4
       with:

.github/workflows/lint-frontend.yaml

@@ -19,7 +19,7 @@ jobs:
 
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it.
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Install modules
         run: npm install stylelint stylelint-config-recommended stylelint-config-standard stylelint-order eslint

.github/workflows/mypy.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python 3.11
       uses: actions/setup-python@v4
       with:

.github/workflows/prettier.yaml

@@ -14,7 +14,7 @@ jobs:
 
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it.
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Install modules
         run: npm install prettier@2.5.1

.github/workflows/pylint.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python 3.11
       uses: actions/setup-python@v4
       with: