chore(deps): bump docker/build-push-action from 5 to 6 (#68)

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

---
updated-dependencies:
- dependency-name: docker/build-push-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>

.github/workflows/ci.yml

@@ -93,7 +93,7 @@ jobs:
 
       - name: Build linux/amd64 image
         id: amd-build
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           file: .github/test.Dockerfile
           builder: ${{ steps.buildx.outputs.name }}
@@ -103,7 +103,7 @@ jobs:
 
       - name: Build linux/arm64 image
         id: arm-build
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           file: .github/test.Dockerfile
           builder: ${{ steps.buildx.outputs.name }}