(update) fix: ProjectileEntityMixin is not registered.

.github/workflows/deploy.yml

@@ -11,10 +11,11 @@ on:
   schedule:
     - cron: '0 20 * * *'
   workflow_dispatch:
-  
+  push:
+    branches: [ "master" ]
 jobs:
   build:
-
+    if: startsWith(github.event.head_commit.message, '(update)')
     runs-on: ubuntu-latest
     permissions:
       contents: read