Bump the artifact-io group with 2 updates

Bumps the artifact-io group with 2 updates: [actions/upload-artifact](https://github.com/actions/upload-artifact) and [actions/download-artifact](https://github.com/actions/download-artifact).


Updates `actions/upload-artifact` from 4 to 5
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v5)

Updates `actions/download-artifact` from 5 to 6
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v5...v6)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: artifact-io
- dependency-name: actions/download-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: artifact-io
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -82,7 +82,7 @@ jobs:
           outputs: type=docker,dest=/tmp/image.tar
 
       - name: Upload base docker image as artifact for e2e tests
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: controller-image
           path: /tmp/image.tar
@@ -162,7 +162,7 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
       - name: Download docker image artifact from docker job
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v6
         with:
           name: controller-image
           path: /tmp