chore(server): split gcloud sql proxy into a separate deployment (#5101)

After merge this pull request, need to change the `DATABASE_URL` in environment secrets (stable/beta) from `127.0.0.1` to `affine-cloud-sql-proxy`

.github/workflows/deploy.yml

@@ -4,7 +4,7 @@ on:
   workflow_dispatch:
     inputs:
       flavor:
-        description: 'Build type (canary, beta, or stable)'
+        description: 'Build type (canary, beta, or stable or internal)'
         type: string
         default: canary
 
@@ -249,3 +249,4 @@ jobs:
           CLOUD_SQL_IAM_ACCOUNT: ${{ secrets.CLOUD_SQL_IAM_ACCOUNT }}
           STRIPE_API_KEY: ${{ secrets.STRIPE_API_KEY }}
           STRIPE_WEBHOOK_KEY: ${{ secrets.STRIPE_WEBHOOK_KEY }}
+          STATIC_IP_NAME: ${{ secrets.STATIC_IP_NAME }}

.github/workflows/workers.yml

@@ -11,7 +11,7 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     name: Deploy
-    environment: production
+    environment: stable
     steps:
       - uses: actions/checkout@v4
       - name: Publish