chore(deps): bump docker/build-push-action from 2.7.0 to 2.8.0

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 2.7.0 to 2.8.0.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](a66e35b9cb...1814d3dfb3)

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

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

.github/workflows/continuous-integration.yaml

@@ -684,7 +684,7 @@ jobs:
 
       - name: Build concrete-numpy Image
         if: ${{ success() && !cancelled() }}
-        uses: docker/build-push-action@a66e35b9cbcf4ad0ea91ffcaf7bbad63ad9e0229
+        uses: docker/build-push-action@1814d3dfb36d6f84174e61f4a4b05bd84089a4b9
         with:
           context: .
           file: docker/Dockerfile.release