message: Update bitgo-utxo-lib version to the one that supports BSV
diff: "bigi": "1.4.0",
  "bignumber.js": "~8.0.1",
  "bitcoinjs-message": "~2.0.0",
  - "bitgo-utxo-lib": "^1.2.1",
  + "bitgo-utxo-lib": "^1.3.0",
  "bluebird": "~3.5.0",
  "body-parser": "~1.18.2",
  "bs58": "2.0.1",
  