build(deps): Bump docker/build-push-action (#163)

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from f2a1d5e99d037542a71f64918e516c093c6f3fc4 to 831ca179d3cf91cf0c90ca465a408fa61e2129a2.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@f2a1d5e...831ca17)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Michi Hoffmann <cleptric@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/docker.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
       - name: Build Potal Docker image
-        uses: docker/build-push-action@f2a1d5e99d037542a71f64918e516c093c6f3fc4
+        uses: docker/build-push-action@831ca179d3cf91cf0c90ca465a408fa61e2129a2
         with:
           context: .
           file: ./docker/potal/Dockerfile
@@ -33,7 +33,7 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
       - name: Build Backend Docker image
-        uses: docker/build-push-action@f2a1d5e99d037542a71f64918e516c093c6f3fc4
+        uses: docker/build-push-action@831ca179d3cf91cf0c90ca465a408fa61e2129a2
         with:
           context: .
           file: ./docker/backend/Dockerfile