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] <[email protected]>

Author: dependabot[bot]

.github/workflows/deploy.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       ### MkDocs
       - name: Setup Python
         uses: actions/setup-python@v5

.github/workflows/php.yml

@@ -16,7 +16,7 @@ jobs:
           php-version: '7.4'
           extensions: xml
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       -   name: Validate composer config
           run: composer validate --strict
@@ -53,7 +53,7 @@ jobs:
                 php-version: ${{ matrix.php }}
                 extensions: xml
 
-        -   uses: actions/checkout@v4
+        -   uses: actions/checkout@v5
 
         -   name: Composer Install
             run: composer install --ansi --prefer-dist --no-interaction --no-progress
@@ -85,7 +85,7 @@ jobs:
               extensions: xml
               coverage: ${{ (matrix.php == '8.1') && 'xdebug' || 'none' }}
 
-      -   uses: actions/checkout@v4
+      -   uses: actions/checkout@v5
 
       -   name: Install dependencies
           run: composer install --ansi --prefer-dist --no-interaction --no-progress
@@ -111,7 +111,7 @@ jobs:
     name: Roave Backwards Compatibility Check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
       - name: "Check for BC breaks"