Update Docker cache references in workflow

Author: paoloronco

.github/workflows/docker-publish.yml

@@ -55,5 +55,6 @@ jobs:
           labels: ${{ steps.meta.outputs.labels }}
           build-args: |
             NODE_ENV=production
-          cache-from: type=registry,ref=${{ secrets.DOCKERHUB_USERNAME }}/lynx:buildcache
-          cache-to: type=registry,ref=${{ secrets.DOCKERHUB_USERNAME }}/lynx:buildcache,mode=max
+          cache-from: type=registry,ref=paueron/lynx:buildcache
+          cache-to: type=inline
+