chore(deps): Bump docker/build-push-action from 5 to 6 (#1178)

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

.github/workflows/anchore.yml

@@ -42,7 +42,7 @@ jobs:
           name: jars
           path: build
       - name: Build API Gateway local container
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
           file: ./api-gateway/Dockerfile
@@ -52,7 +52,7 @@ jobs:
           build-args: |
             JAR_FILE=./build/api-gateway/build/libs/api-gateway-latest-dev.jar
       - name: Build Search Service local container
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
           file: ./search-service/Dockerfile
@@ -62,7 +62,7 @@ jobs:
           build-args: |
             JAR_FILE=./build/search-service/build/libs/search-service-latest-dev.jar
       - name: Build Subscription Service local container
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
           file: ./subscription-service/Dockerfile