Returned back to original gitea action

.github/workflows/build.yml

@@ -9,6 +9,7 @@ on:
       - main
     paths-ignore: # don't rebuild if only documentation has changed
       - "**.md"
+  pull_request:
   workflow_dispatch: # allow manually triggering builds
 concurrency:
   # only run one build at a time
@@ -36,9 +37,9 @@ jobs:
         with:
           recipe: ${{ matrix.recipe }}
           cosign_private_key: ${{ secrets.SIGNING_SECRET }}
-          registry_token: ${{ secrets.GITHUB_TOKEN }}
+          registry: 'git.hydrosaber.com'
+          registry_token: ${{ secrets.PACKAGE_BUILDER_TOKEN }}
           pr_event_number: ${{ github.event.number }}
 
           # enabled by default, disable if your image is small and you want faster builds
           maximize_build_space: true
-          rechunk: true