Update actions/checkout action to v4

Author: renovate[bot]

.github/workflows/lint.yml

@@ -11,7 +11,7 @@ jobs:
   markdown:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: ⬇️ lint markdown files # Lints all markdown (.md) files
         uses: avto-dev/markdown-lint@v1
         with:
@@ -20,7 +20,7 @@ jobs:
   renovate:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: 🧼 lint renovate config # Validates changes to renovate.json config file
         uses: suzuki-shunsuke/[email protected]
         with:

.github/workflows/main.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - uses: actions/[email protected]
         with:
           python-version: ${{ env.PYTHON_VERSION }}
@@ -30,7 +30,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/[email protected]
         with:
@@ -47,7 +47,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
         - name: Check out code
-          uses: actions/checkout@v3
+          uses: actions/checkout@v4
         - uses: actions/[email protected]
           with:
             python-version: ${{ env.PYTHON_VERSION }}
@@ -63,7 +63,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - uses: actions/[email protected]
         with:
           python-version: ${{ env.PYTHON_VERSION }}
@@ -79,7 +79,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
         - name: Check out code
-          uses: actions/checkout@v3
+          uses: actions/checkout@v4
         - uses: actions/[email protected]
           with:
             python-version: ${{ env.PYTHON_VERSION }}
@@ -98,7 +98,7 @@ jobs:
         python-version: ["3.7", "3.8", "3.9", "3.10"]
     steps:
         - name: Check out code
-          uses: actions/checkout@v3
+          uses: actions/checkout@v4
         - uses: actions/[email protected]
           with:
             python-version: ${{ matrix.python-version }}
@@ -139,7 +139,7 @@ jobs:
             python-version: ["3.7", "3.8", "3.9", "3.10"]
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - uses: actions/[email protected]
         with:
           python-version: ${{ matrix.python-version }}
@@ -156,7 +156,7 @@ jobs:
     if: github.event_name == 'pull_request'
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - uses: actions/[email protected]
         with:
@@ -182,7 +182,7 @@ jobs:
     if: github.event_name == 'push' && github.ref == 'refs/heads/main'
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - uses: actions/[email protected]
         with:

.github/workflows/publish_release.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - uses: actions/[email protected]
         with:
@@ -35,7 +35,7 @@ jobs:
     environment: "Publish Release"
     steps:
       - name: Check out code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - uses: actions/[email protected]
         with: