[ci] ok back to the old way

Author: keeakita

.github/workflows/build.yml

@@ -4,21 +4,14 @@ permissions:
   id-token: write
 
 on:
-  push:
-    branches: [main]
-  pull_request:
-    branches: [main]
   workflow_call:
 
 env:
   BACKEND_IMAGE_REF: us-west1-docker.pkg.dev/${{ secrets.GCP_PROJECT_SLUG }}/firetower-docker/firetower:${{ github.sha }}
   STATIC_IMAGE_REF: us-west1-docker.pkg.dev/${{ secrets.GCP_PROJECT_SLUG }}/firetower-docker/nginx:${{ github.sha }}
 
 jobs:
-  ci:
-    uses: ./.github/workflows/ci.yml
   build:
-    needs: [ci]
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code

.github/workflows/ci.yml

@@ -1,6 +1,10 @@
 name: CI
 
 on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
   workflow_call:
 
 jobs:

.github/workflows/deploy.yml

@@ -19,7 +19,10 @@ env:
   STATIC_IMAGE_REF: us-west1-docker.pkg.dev/${{ secrets.GCP_PROJECT_SLUG }}/firetower-docker/nginx:${{ github.sha }}
 
 jobs:
+  build:
+    uses: ./.github/workflows/build.yml
   deploy:
+    needs: [build]
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code