fix(ci): use pnpm exec for migrate command

- Switch from npx to pnpm exec for better env var handling
- Add NODE_OPTIONS: --no-deprecation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.github/workflows/ci.yml

@@ -129,10 +129,11 @@ jobs:
       - name: Setup Database Schema
         run: |
           echo "Running migrate:fresh..."
-          npx payload migrate:fresh --force
+          pnpm exec payload migrate:fresh --force
         timeout-minutes: 5
         env:
           CI: true
+          NODE_OPTIONS: --no-deprecation
           PAYLOAD_SECRET: test-payload-secret
           DATABASE_URI: postgresql://payload:payload_test_password@localhost:5432/payload_test
           NEXT_PUBLIC_SERVER_URL: https://test.example.com
@@ -265,10 +266,11 @@ jobs:
       - name: Setup Database Schema
         run: |
           echo "Running migrate:fresh..."
-          npx payload migrate:fresh --force
+          pnpm exec payload migrate:fresh --force
         timeout-minutes: 5
         env:
           CI: true
+          NODE_OPTIONS: --no-deprecation
           PAYLOAD_SECRET: e2e-secret-placeholder
           DATABASE_URI: postgresql://payload:payload_test_password@localhost:5432/payload_test
           NEXT_PUBLIC_SERVER_URL: http://localhost:3001