Bump actions/checkout from 5 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/build-latest.yaml

@@ -40,7 +40,7 @@ jobs:
             imageDistroVersion: trixie
             imageDistroVariant: slim
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
       - name: Set up Docker Buildx
@@ -97,7 +97,7 @@ jobs:
           - init_scripts
           - multiple_databases
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Download artifact
         uses: actions/download-artifact@v6
         with:
@@ -124,7 +124,7 @@ jobs:
       )
     needs: [build-docker-image, run-scenario-tests]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Download artifact
         uses: actions/download-artifact@v6
         with:
@@ -160,7 +160,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [ build-docker-image, run-scenario-tests ]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Download artifact
         uses: actions/download-artifact@v6
         with:

.github/workflows/deploy-image.yaml

@@ -33,7 +33,7 @@ jobs:
             imageDistroVersion: trixie
             imageDistroVariant: slim
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
       - name: Set up Docker Buildx
@@ -103,7 +103,7 @@ jobs:
     steps:
       - name: Checkout code
         id: git_checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: 'develop'