Bump docker/metadata-action from 4 to 5 (kartoza#450)

Bumps [docker/metadata-action](https://github.com/docker/metadata-action) from 4 to 5.
- [Release notes](https://github.com/docker/metadata-action/releases)
- [Upgrade guide](https://github.com/docker/metadata-action/blob/master/UPGRADE.md)
- [Commits](docker/metadata-action@v4...v5)

---
updated-dependencies:
- dependency-name: docker/metadata-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/build-latest.yaml

@@ -112,7 +112,7 @@ jobs:
  password: ${{ secrets.DOCKERHUB_PASSWORD }}
  - name: Docker meta
  id: docker_meta
- uses: docker/metadata-action@v4
+ uses: docker/metadata-action@v5
  with:
  images: ${{ secrets.DOCKERHUB_REPO}}/postgis
  tags: |