Bump actions/checkout from 3 to 4 (#217)

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/check-python-dependcies.yml

@@ -16,7 +16,7 @@ jobs:
   build:
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Install Python 2 support
       run: |
         sudo apt-get update

.github/workflows/docker.yml

@@ -21,7 +21,7 @@ jobs:
   build:
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Record Docker version
         run: docker -v
       - uses: whoan/docker-build-with-cache-action@v6

.github/workflows/run-django-test.yml

@@ -25,7 +25,7 @@ jobs:
         env:
           MYSQL_ROOT_PASSWORD: 'ci-db-pswd'
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Install Python 2 support
       run: |
         sudo apt-get update

.github/workflows/run-fabric-test.yml

@@ -14,7 +14,7 @@ jobs:
   build:
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Install Python 2 support
       run: |
         sudo apt-get update