chore(deps): bump actions/checkout from 4 to 5 (#13)

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

Author: dependabot[bot]

.github/workflows/unit-tests.yml

@@ -20,7 +20,7 @@ jobs:
     steps:
       # Check out the repository code
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       # Set up the desired PHP version with extensions and coverage
       - name: Setup PHP

.github/workflows/update-changelog.yml

@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: master