chore(deps): Bump docker/build-push-action

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 789f68658055d3ca993799b232b5c46dfe3f114d to ff26911fd365b0233252dfbd8eede1c0e9ef9a51.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@789f686...ff26911)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-version: 1d0c110a5d679453d30b396aa86f6bb6ae377b76
  dependency-type: direct:production
...

PR: #745
Signed-off-by: dependabot[bot] <support@github.com>
Reviewed-by: Charalampos Mainas <cmainas@nubificus.co.uk>
Approved-by: Charalampos Mainas <cmainas@nubificus.co.uk>

Author: dependabot[bot]

.github/workflows/build-latest.yml

@@ -110,7 +110,7 @@ jobs:
  
       - name: Build and push urunc-deploy-${{ matrix.arch}}
         id: build-and-push
-        uses: docker/build-push-action@789f68658055d3ca993799b232b5c46dfe3f114d # master
+        uses: docker/build-push-action@ff26911fd365b0233252dfbd8eede1c0e9ef9a51 # master
         with:
           context: ./deployment/urunc-deploy
           tags: ${{ steps.meta.outputs.tags }}