chore(deps): Bump docker/metadata-action from 3.8.0 to 4.0.1 (#2581)

Bumps [docker/metadata-action](https://github.com/docker/metadata-action) from 3.8.0 to 4.0.1.
- [Release notes](https://github.com/docker/metadata-action/releases)
- [Upgrade guide](https://github.com/docker/metadata-action/blob/master/UPGRADE.md)
- [Commits](https://github.com/docker/metadata-action/compare/v3.8.0...v4.0.1)

---
updated-dependencies:
- dependency-name: docker/metadata-action
  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>
Co-authored-by: Georg Lauterbach <44545919+georglauterbach@users.noreply.github.com>

.github/workflows/default_on_push.yml

@@ -68,7 +68,7 @@ jobs:
 
       - name: Prepare tags
         id: prep
-        uses: docker/metadata-action@v3.8.0
+        uses: docker/metadata-action@v4.0.1
         with:
           images: |
             ${{ secrets.DOCKER_REPOSITORY }}

.github/workflows/scheduled_builds.yml

@@ -15,7 +15,7 @@ jobs:
 
       - name: Prepare tags
         id: prep
-        uses: docker/metadata-action@v3.8.0
+        uses: docker/metadata-action@v4.0.1
         with:
           images: |
             ${{ secrets.DOCKER_REPOSITORY }}