message: Update js-yaml
diff: "is-hex-prefixed": {
  "version": "1.0.0",
  "resolved": "https://registry.npmjs.org/is-hex-prefixed/-/is-hex-prefixed-1.0.0.tgz",
  - "integrity": "sha1-fY035q135dEnFIkTxXPggtd39VQ="
  + "integrity": "sha1-fY035q135dEnFIkTxXPggtd39VQ=",
  + "optional": true
  },
  "is-number": {
  "version": "3.0.0",
  }
  },
  "js-yaml": {
  - "version": "3.12.1",
  - "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.12.1.tgz",
  - "integrity": "sha512-um46hB9wNOKlwkHgiuyEVAybXBjwFUV0Z/RaHJblRd9DXltue9FTYvzCr9ErQrK9Adz5MU4gHWVaNUfdmrC8qA==",
  + "version": "3.13.0",
  + "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.13.0.tgz",
  + "integrity": "sha512-pZZoSxcCYco+DIKBTimr67J6Hy+EYGZDY/HCWC+iAEA9h1ByhMXAIVUXMcMFpOCxQ/xjXmPI2MkDL5HRm5eFrQ==",
  "dev": true,
  "requires": {
  "argparse": "^1.0.7",
  