Switch to release builds

Author: matijse

.github/workflows/docker-build.yml

@@ -1,7 +1,7 @@
 name: Publish Docker image
 on:
-  push:
-    branches: main
+  release:
+    types: [published]
 jobs:
   push_to_registry:
     name: Push Docker image to Docker Hub
@@ -23,3 +23,4 @@ jobs:
           push: true
           platforms: linux/amd64,linux/arm/v7,linux/arm64/v8
           tags: matijse/eufy-ha-mqtt-bridge:latest
+          tag_with_ref: true