deps(actions): bump actions/checkout (#71)

Bumps the github-actions-dependencies 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: github-actions-dependencies
...

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/matomo-tests.yml

@@ -49,7 +49,7 @@ jobs:
           - maximum_supported_matomo
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           lfs: true
           persist-credentials: false
@@ -67,7 +67,7 @@ jobs:
     runs-on: ubuntu-24.04
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           lfs: true
           persist-credentials: false

.github/workflows/phpcs.yml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-24.04
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           lfs: false
           persist-credentials: false

.github/workflows/phpstan.yml

@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-24.04
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           lfs: false
           persist-credentials: false
@@ -34,7 +34,7 @@ jobs:
           php-version: '8.1'
 
       - name: Check out github-action-tests repository
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           repository: matomo-org/github-action-tests
           ref: main