Update publish.yml

Author: rlukata

.github/workflows/publish.yml

@@ -6,6 +6,9 @@ on:
   pull_request:
     branches: main
 
+env:
+  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
 jobs:
   build-and-push-image:
     if: github.event.pull_request.head.repo.full_name == github.event.pull_request.base.repo.full_name