fix(ci): add postgres service to deploy workflow

Author: benjie

.github/workflows/deploy.yml

@@ -13,6 +13,24 @@ jobs:
       CI: true
       TERM: xterm
       FORCE_COLOR: 1
+      PGUSER: postgres
+      PGPASSWORD: postgres
+      PGHOST: localhost
+      PGPORT: 5432
+
+    services:
+      postgres:
+        image: postgres:13
+        env:
+          POSTGRES_USER: postgres
+          POSTGRES_PASSWORD: postgres
+          POSTGRES_DB: postgres
+        ports:
+          - "0.0.0.0:5432:5432"
+        # needed because the postgres container does not provide a healthcheck
+        options:
+          --health-cmd pg_isready --health-interval 10s --health-timeout 5s
+          --health-retries 5 --name postgres
 
     steps:
       - uses: actions/checkout@v2