Update ci.yml

Author: yanorei32

.github/workflows/ci.yml

@@ -17,7 +17,7 @@ on:
 env:
   CARGO_INCREMENTAL: 0
   RUST_CACHE_VERSION: v1
-  REGISTRY_IMAGE: ghcr.io/eewbot/eew-renderer
+  REGISTRY_IMAGE: ghcr.io/eewbot/webhook-sender
 
 jobs:
   rust: