Bump docker/build-push-action from 5.0.0 to 6.15.0

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 5.0.0 to 6.15.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@0565240...471d1dc)

---
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]>

Author: dependabot[bot]

.github/workflows/azure-preview-env-deploy.yml

@@ -206,7 +206,7 @@ jobs:
         run: src/workflows/prune-for-preview-env.sh
 
       - name: 'Build and push image'
-        uses: docker/build-push-action@0565240e2d4ab88bba5387d719585280857ece09
+        uses: docker/build-push-action@471d1dc4e07e5cdedd4c2171150001c434f0b7a4
         with:
           context: .
           push: true

.github/workflows/azure-prod-build-deploy.yml

@@ -87,7 +87,7 @@ jobs:
           token: ${{ secrets.DOCS_BOT_PAT_READPUBLICKEY }}
 
       - name: 'Build and push image'
-        uses: docker/build-push-action@0565240e2d4ab88bba5387d719585280857ece09
+        uses: docker/build-push-action@471d1dc4e07e5cdedd4c2171150001c434f0b7a4
         with:
           context: .
           push: true

.github/workflows/azure-staging-build-deploy.yml

@@ -91,7 +91,7 @@ jobs:
         run: src/early-access/scripts/merge-early-access.sh
 
       - name: 'Build and push image'
-        uses: docker/build-push-action@0565240e2d4ab88bba5387d719585280857ece09
+        uses: docker/build-push-action@471d1dc4e07e5cdedd4c2171150001c434f0b7a4
         with:
           context: .
           push: true

.github/workflows/main-preview-docker-cache.yml

@@ -68,7 +68,7 @@ jobs:
         run: src/workflows/prune-for-preview-env.sh
 
       - name: 'Build and push image'
-        uses: docker/build-push-action@0565240e2d4ab88bba5387d719585280857ece09
+        uses: docker/build-push-action@471d1dc4e07e5cdedd4c2171150001c434f0b7a4
         with:
           context: .
           push: true