build(deps): bump docker/build-push-action from 6 to 7

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 6 to 7.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](https://github.com/docker/build-push-action/compare/v6...v7)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/publish.yml

@@ -53,7 +53,7 @@ jobs:
           echo "KUBECTL_VERSION=$(grep -oP '^KUBECTL_VERSION\s*\?=\s*\K.*' makefile)" >> $GITHUB_ENV
       - name: Build and push - Docker/ECR
         id: docker_build
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: .
           platforms: linux/amd64,linux/arm64,linux/ppc64le,linux/s390x
@@ -72,7 +72,7 @@ jobs:
 
       - name: Build and push ubi image - Docker/ECR
         id: docker_build_ubi
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: .
           platforms: linux/amd64,linux/arm64,linux/ppc64le,linux/s390x
@@ -92,7 +92,7 @@ jobs:
 
       - name: Build and push fips ubi image - Docker/ECR
         id: docker_build_fips_ubi
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: .
           platforms: linux/amd64,linux/arm64,linux/ppc64le,linux/s390x