chore(deps): bump actions/checkout from 4 to 5 (#981)

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 5.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v5)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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/acceptance-tests.yml

@@ -51,7 +51,7 @@ jobs:
       id-token: write
     if: github.event.action != 'closed' && needs.check-deploy.outputs.deploy == 'true'
     steps:
-      - uses: actions/checkout@v4.2.2
+      - uses: actions/checkout@v5
         with:
           repository: SwissDataScienceCenter/renku
           sparse-checkout: |

.github/workflows/save_cache.yml

@@ -17,7 +17,7 @@ jobs:
       DEVCONTAINER_IMAGE_CACHE: ghcr.io/swissdatasciencecenter/renku-data-services/devcontainer
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
       - name: Login to Docker Hub

.github/workflows/test_publish.yml

@@ -28,7 +28,7 @@ jobs:
       image_repository: ${{ steps.docker_image.outputs.image_repository }}
       image_tag: ${{ steps.docker_image.outputs.image_tag }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
       - name: Docker image metadata
@@ -74,7 +74,7 @@ jobs:
     needs:
       - build-devcontainer
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
       - uses: actions/cache/restore@v4
@@ -101,7 +101,7 @@ jobs:
       - build-devcontainer
       - style-checks
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
       - uses: actions/cache/restore@v4
@@ -150,7 +150,7 @@ jobs:
       - build-devcontainer
       - style-checks
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
       - uses: actions/cache/restore@v4
@@ -237,7 +237,7 @@ jobs:
             name: data-tasks
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Docker meta ${{ matrix.service }}
         id: meta
         uses: docker/metadata-action@v5