message: Silence CodeSandbox's PR comment
diff: {
  "packages": ["packages/core", "exchanges/graphcache", "packages/react-urql"],
  + "sandboxes": ["urql-issue-template-client-iui0o"],
  "buildCommand": "build",
  - "sandboxes": ["urql-issue-template-client-iui0o"]
  + "silent": true
  }
  