Code generation tool cloud function (#4962)

Author: benjaminmah

.github/workflows/comment_resolver.yml

@@ -0,0 +1,38 @@
+name: Deploy Code Generation Function
+
+on: workflow_dispatch
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      id-token: write
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Google Cloud Auth
+        id: auth
+        uses: google-github-actions/auth@v2
+        with:
+          credentials_json: ${{ secrets.GCP_SA_CREDENTIALS }}
+
+      - name: Set up gcloud
+        uses: google-github-actions/setup-gcloud@v2
+
+      - name: Deploy to Cloud Functions
+        working-directory: functions/code_generation
+        run: |
+          gcloud functions deploy code-generation \
+            --gen2 \
+            --trigger-http \
+            --allow-unauthenticated \
+            --region=us-central1 \
+            --timeout=300 \
+            --memory=2Gi \
+            --runtime=python311 \
+            --entry-point=handle_phabricator_webhook \
+            --service-account=review-helper@moz-bugbug.iam.gserviceaccount.com \
+            --set-secrets=OPENAI_API_KEY=openai-api-key:latest