Bump actions/checkout from 2 to 5 (#384)

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 5.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2...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] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/build-gh-pages.yml

@@ -21,7 +21,7 @@ jobs:
       version: ${{ steps.version-info.outputs.version }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       # Read languages from JSON file
       - name: Get languages directly with jq
@@ -55,7 +55,7 @@ jobs:
         language: ${{ fromJSON(needs.get-info.outputs.languages) }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
@@ -120,7 +120,7 @@ jobs:
     if: github.ref_name == 'main'
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       # Copy important files to root
       - name: Create root files directory