Update Woodpecker CI

.woodpecker.yaml

@@ -1,6 +1,9 @@
 when:
   event:
+    - push
     - tag
+  branch:
+    - main
 
 skip_clone: true
 steps:
@@ -21,6 +24,9 @@ steps:
 - name: release
   image: woodpeckerci/plugin-release:0.2.6
   backend_options: *backend_options
+  when:
+    event:
+      - tag
   settings:
     api_key:
       from_secret: gitea_release_token