github-actions(deps): 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/qa.yml

@@ -24,7 +24,7 @@ jobs:
 
     steps:
       -   name: Checkout
-          uses: actions/checkout@v6
+          uses: actions/checkout@v7
 
       # the Docker image will install the dependencies automatically
 
@@ -44,7 +44,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: ✅ Composer validate
         run: composer validate --strict

.github/workflows/tests.yml

@@ -85,7 +85,7 @@ jobs:
           rm -f mongodb-database-tools-*.deb
 
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: 🐘 Setup PHP, with composer and extensions
         uses: shivammathur/setup-php@v2 #https://github.com/shivammathur/setup-php