chore(deps): update docker/build-push-action action to v7

| datasource  | package                  | from | to     |
| ----------- | ------------------------ | ---- | ------ |
| github-tags | docker/build-push-action | v6   | v7.1.0 |

Author: renovate[bot]

.github/workflows/build.yml

@@ -47,7 +47,7 @@ jobs:
           type=ref,event=pr
 
     - name: Build and push image
-      uses: docker/build-push-action@v6
+      uses: docker/build-push-action@v7
       with:
         push: ${{ inputs.push != 'false' }} # is null if trigger != workflow_dispatch
         tags: ${{ steps.meta.outputs.tags }}