Update .woodpecker/build.yml

.woodpecker/build.yml

@@ -15,8 +15,6 @@ steps:
   - echo ${CI_COMMIT_SHA:0:8} > .version
 - name: dryrun
   image: woodpeckerci/plugin-docker-buildx
-  environment:
-    IMAGE_REPO_URL: *repo
   backend_options:
       kubernetes:
         securityContext:
@@ -24,7 +22,7 @@ steps:
   settings:
     dockerfile: *file
     platforms: linux/arm64,linux/amd64
-    cache_from: type=registry,ref=${IMAGE_REPO_URL}
+    cache_from: type=registry,ref=dev.shielddagger.com/infra/discord-notifier
     cache_to: type=inline
     dry_run: true
     repo: *repo