Bump docker/build-push-action from 3 to 6 (#6774)

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 3 to 6.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v3...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/deploy.yml

@@ -103,7 +103,7 @@ jobs:
         echo ::set-output name=tags::$(.github/workflows/get_image_tags.sh "$IMG" "v")
 
     - name: build and push
-      uses: docker/build-push-action@v3
+      uses: docker/build-push-action@v6
       with:
         file: ./images/${{ matrix.id }}/Dockerfile
         context: .
@@ -149,7 +149,7 @@ jobs:
         echo ::set-output name=tags::$(.github/workflows/get_image_tags.sh "$IMG" "scorecard-kuttl/v")
 
     - name: build and push
-      uses: docker/build-push-action@v3
+      uses: docker/build-push-action@v6
       with:
         file: ./images/scorecard-test-kuttl/Dockerfile
         context: .