Bump actions/checkout from 6 to 7

Bumps [actions/checkout](https://github.com/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
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -64,7 +64,7 @@ jobs:
           path: ~/.composer/cache
           key: composer-php${{ matrix.php }}
 
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           path: EarlyCopy
 
@@ -73,7 +73,7 @@ jobs:
         working-directory: ~
         run: bash EarlyCopy/.github/workflows/installMediaWiki.sh ${{ matrix.mw }} Network
 
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           path: mediawiki/extensions/Network
 
@@ -123,7 +123,7 @@ jobs:
           path: ~/.composer/cache
           key: composer_static_analysis
 
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           path: EarlyCopy
 
@@ -132,7 +132,7 @@ jobs:
         working-directory: ~
         run: bash EarlyCopy/.github/workflows/installMediaWiki.sh ${{ matrix.mw }} Network
 
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           path: mediawiki/extensions/Network
 
@@ -188,7 +188,7 @@ jobs:
           path: ~/.composer/cache
           key: composer_static_analysis
 
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           path: EarlyCopy
 
@@ -197,7 +197,7 @@ jobs:
         working-directory: ~
         run: bash EarlyCopy/.github/workflows/installMediaWiki.sh ${{ matrix.mw }} Network
 
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           path: mediawiki/extensions/Network