fix(deps): update dependency js-yaml to v4

Author: renovate-bot

package-lock.json

@@ -53,7 +53,7 @@
     "execa": "^5.0.0",
     "https-proxy-agent": "^5.0.0",
     "ignore": "^5.1.8",
-    "js-yaml": "^3.14.1",
+    "js-yaml": "^4.0.0",
     "lodash": "^4.17.20",
     "mkdirp": "^1.0.4",
     "node-fetch": "^2.6.1",
@@ -75,7 +75,7 @@
     "@types/deasync": "0.1.1",
     "@types/eslint": "7.2.6",
     "@types/eslint-plugin-prettier": "3.1.0",
-    "@types/js-yaml": "3.12.5",
+    "@types/js-yaml": "4.0.0",
     "@types/lodash": "4.14.168",
     "@types/mkdirp": "1.0.1",
     "@types/mocha": "8.2.0",