chore(deps): bump docker/metadata-action from 5 to 6

Bumps [docker/metadata-action](https://github.com/docker/metadata-action) from 5 to 6.
- [Release notes](https://github.com/docker/metadata-action/releases)
- [Commits](docker/metadata-action@v5...v6)

---
updated-dependencies:
- dependency-name: docker/metadata-action
  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/test.yaml

@@ -30,7 +30,7 @@ jobs:
       - uses: actions/checkout@v6
       - name: Docker image metadata
         id: meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v6
         with:
           images: ${{ env.DEVCONTAINER_REGISTRY }}/${{ env.DEVCONTAINER_IMAGE_NAME }}
           tags: |
@@ -93,7 +93,7 @@ jobs:
 
       - name: Docker metadata
         id: meta
-        uses: docker/metadata-action@v5
+        uses: docker/metadata-action@v6
         with:
           images: ghcr.io/${{ github.repository }}/run-image
           tags: |

.github/workflows/update-versions.yml

@@ -258,7 +258,7 @@ jobs:
 
     - name: Docker meta
       id: meta
-      uses: docker/metadata-action@v5
+      uses: docker/metadata-action@v6
       with:
         images: ghcr.io/${{ github.repository }}/${{ matrix.builder }}
         tags: |
@@ -302,7 +302,7 @@ jobs:
 
     - name: Docker meta
       id: meta
-      uses: docker/metadata-action@v5
+      uses: docker/metadata-action@v6
       with:
         images: ghcr.io/${{ github.repository }}/${{ matrix.builder }}
         tags: |