fix(ci): align dapp-deploy secrets with GHA config

Author: abbesBenayache

.github/workflows/dapp-deploy.yml

@@ -30,8 +30,8 @@ jobs:
       registry: 'docker.io'
       context: 'dapp'
     secrets:
-      username: ${{ secrets.REGIS_USERNAME }}
-      password: ${{ secrets.REGIS_PASSWORD }}
+      username: ${{ secrets.DOCKERHUB_USERNAME }}
+      password: ${{ secrets.DOCKERHUB_PAT }}
 
   sconify:
     needs: [extract-tag, build-push]