Bump actions/checkout from 4 to 5

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 5.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v5)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/readme-checker.yaml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Markdown Lint
         uses: DavidAnson/markdownlint-cli2-action@992badcdf24e3b8eb7e87ff9287fe931bcb00c6e
         with:

.github/workflows/shell-checker.yaml

@@ -7,7 +7,7 @@ jobs:
   sh-checker:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Run the sh-checker
         uses: luizm/action-sh-checker@17bd25a6ee188d2b91f677060038f4ba37ba14b2
         env:

.github/workflows/shell-format.yaml

@@ -17,7 +17,7 @@ jobs:
         run: |
           sudo apt-get install shfmt -y
       - name: Checkout Code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: ${{ github.head_ref }}
       - name: Format, Commit and Push Changes