Refined Docker build trigger branch

The Docker build and push workflow has been adjusted to only trigger on pushes to the 'release' branch, removing the previous behavior of triggering on both 'main' and 'release' branches. This change streamlines our deployment process by ensuring Docker images are built only when necessary.

.github/workflows/docker-push.yaml

@@ -3,8 +3,7 @@ name: Docker build and push
 on:
   push:
     branches:
-      - main
-      - release
+      - 'release'
 
 env:
   PLATFORMS: ${{ vars.PLATFORMS || 'linux/amd64,linux/arm64' }}