chore(deps): bump docker/build-push-action from 5 to 6 (#4055)

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](https://github.com/docker/build-push-action/compare/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/reusable-container-workflow.yaml

@@ -132,7 +132,7 @@ jobs:
       #  build is broken based on platforms as load: true is not supported with multi-platform builds
       - if: ${{ hashFiles(format('{0}-{1}', matrix.dockerfile, inputs.build_type)) }}
         name: Build release image for amd64
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
           platforms: linux/amd64
@@ -150,7 +150,7 @@ jobs:
 
       - if: ${{ hashFiles(format('{0}-{1}', matrix.dockerfile, inputs.build_type)) }}
         name: Build release image for arm64
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
             context: .
             platforms: linux/arm64
@@ -190,7 +190,7 @@ jobs:
 
       - if: ${{ hashFiles(format('{0}-{1}', matrix.dockerfile, inputs.build_type)) }}
         name: Push release image
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           context: .
           platforms: linux/amd64,linux/arm64