github-actions(deps): bump actions/checkout from 5.0.0 to 6.0.0

Bumps [actions/checkout](https://github.com/actions/checkout) from 5.0.0 to 6.0.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5.0.0...v6.0.0)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/integrate.yaml

@@ -26,7 +26,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v5.0.0"
+        uses: "actions/checkout@v6.0.0"
 
       - name: "Set up PHP"
         uses: "shivammathur/setup-php@2.35.4"
@@ -87,7 +87,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v5.0.0"
+        uses: "actions/checkout@v6.0.0"
 
       - name: "Lint YAML files"
         uses: "ibiqlik/action-yamllint@v3.1.1"
@@ -152,7 +152,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v5.0.0"
+        uses: "actions/checkout@v6.0.0"
 
       - name: "Set up PHP"
         uses: "shivammathur/setup-php@2.35.4"