Bump actions/checkout from 6 to 7 in the all-actions group (#33)

Bumps the all-actions group with 1 update: [actions/checkout](https://github.com/actions/checkout).


Updates `actions/checkout` from 6 to 7
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v6...v7)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: all-actions
...

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/documentation.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: [ubuntu-latest]
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Lint markdown files
         uses: nosborn/github-action-markdown-cli@v3

.github/workflows/php.yml

@@ -70,7 +70,7 @@ jobs:
           git config --global core.autocrlf false
           git config --global core.eol lf
 
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Get composer cache directory
         run: echo COMPOSER_CACHE="$(composer config cache-files-dir)" >> "$GITHUB_ENV"
@@ -133,7 +133,7 @@ jobs:
           git config --global core.autocrlf false
           git config --global core.eol lf
 
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Get composer cache directory
         run: echo COMPOSER_CACHE="$(composer config cache-files-dir)" >> "$env:GITHUB_ENV"
@@ -170,7 +170,7 @@ jobs:
       - name: Setup problem matchers for PHP
         run: echo "::add-matcher::${{ runner.tool_cache }}/php.json"
 
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Get composer cache directory
         run: echo COMPOSER_CACHE="$(composer config cache-files-dir)" >> "$GITHUB_ENV"
@@ -223,7 +223,7 @@ jobs:
       - name: Setup problem matchers for PHP
         run: echo "::add-matcher::${{ runner.tool_cache }}/php.json"
 
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Get composer cache directory
         run: echo COMPOSER_CACHE="$(composer config cache-files-dir)" >> "$GITHUB_ENV"
@@ -252,7 +252,7 @@ jobs:
     runs-on: [ubuntu-latest]
     needs: [unit-tests-linux]
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - uses: actions/download-artifact@v8
         with: