chore(action): bump actions/checkout from 3 to 4

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](https://github.com/actions/checkout/compare/v3...v4)

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

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/linting.yml

@@ -7,14 +7,14 @@ jobs:
   Markdownlint:
     runs-on: 'ubuntu-latest'
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Markdown Lint
         uses: actionshub/markdownlint@v1.0.0
 
   Dockerfilelint:
     runs-on: 'ubuntu-latest'
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Dockerfile Lint
         uses: burdzwastaken/hadolint-action@1.6.0
         env:
@@ -24,7 +24,7 @@ jobs:
   Yamllint:
     runs-on: 'ubuntu-latest'
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: YAML Lint
         uses: karancode/yamllint-github-action@master
         with:

.github/workflows/test.yml

@@ -14,7 +14,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install bats
         run: sudo apt-get -y install bats > /dev/null
       - name: Run CI script