message: update antenna to 0.19.0
diff: "graphql-tag": "2.10.1",
  "graphql-tools": "4.0.4",
  "https": "1.0.0",
  - "iotex-antenna": "0.18.3",
  + "iotex-antenna": "0.19.0",
  "iotex-react-block-producers": "2.1.1",
  "iotex-react-footer": "2.2.2",
  "iotex-react-language-dropdown": "2.2.0",
  