Bump docker/build-push-action from 5.0.0 to 6.6.1

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 5.0.0 to 6.6.1.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v5.0.0...v6.6.1)

---
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/ci.yml

@@ -66,7 +66,7 @@ jobs:
           key: ${{steps.info.outputs.cache-key}}
           restore-keys: ${{steps.info.outputs.cache-restore-keys}}
       - name: Build image
-        uses: docker/build-push-action@v5.0.0
+        uses: docker/build-push-action@v6.6.1
         with:
           builder: ${{steps.buildx.outputs.name}}
           context: .
@@ -99,7 +99,7 @@ jobs:
           password: ${{github.token}}
       - name: Push image
         if: github.ref == 'refs/heads/main'
-        uses: docker/build-push-action@v5.0.0
+        uses: docker/build-push-action@v6.6.1
         with:
           builder: ${{steps.buildx.outputs.name}}
           context: .