chore(deps): update docker/build-push-action action to v6

Author: renovate[bot]

.github/workflows/build.yml

@@ -71,7 +71,7 @@ jobs:
         if: contains( github.ref, 'master' ) || contains( github.base_ref, 'master' )
 
       - name: publish release docker image
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
@@ -94,7 +94,7 @@ jobs:
         if: contains( github.ref, 'develop' ) || contains( github.base_ref, 'develop' )
 
       - name: publish preview docker image
-        uses: docker/build-push-action@v5
+        uses: docker/build-push-action@v6
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}