Bump docker/build-push-action from 5.3.0 to 6.2.0

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 5.3.0 to 6.2.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@2cdde99...1556069)

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

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

.github/workflows/publish.yml

@@ -45,7 +45,7 @@ jobs:
           cp configs/defdockerfiles/ubuntu_multistage Dockerfile
 
       - name: Build and push
-        uses: docker/build-push-action@2cdde995de11925a030ce8070c3d77a52ffcf1c0
+        uses: docker/build-push-action@15560696de535e4014efeff63c48f16952e52dd1
         with:
           context: .
           build-args: TARGETVERSION=v${{ steps.meta.outputs.version }}