Update dependency js-yaml to v4

package.json

@@ -26,7 +26,7 @@
     ]
   },
   "dependencies": {
-    "js-yaml": "^3.13.1",
+    "js-yaml": "^4.0.0",
     "jsonfile": "^5.0.0",
     "koa-bodyparser": "^4.2.1",
     "koa-compose": "^4.1.0",
@@ -38,7 +38,7 @@
   "devDependencies": {
     "@changesets/cli": "2.4.1",
     "@types/jest": "24.9.1",
-    "@types/js-yaml": "3.12.1",
+    "@types/js-yaml": "4.0.0",
     "@types/jsonfile": "5.0.0",
     "@types/koa": "2.11.0",
     "@types/koa-bodyparser": "4.3.0",

yarn.lock

@@ -606,10 +606,10 @@
   dependencies:
     jest-diff "^24.3.0"
 
-"@types/js-yaml@3.12.1":
-  version "3.12.1"
-  resolved "https://registry.yarnpkg.com/@types/js-yaml/-/js-yaml-3.12.1.tgz#5c6f4a1eabca84792fbd916f0cb40847f123c656"
-  integrity sha512-SGGAhXLHDx+PK4YLNcNGa6goPf9XRWQNAUUbffkwVGGXIxmDKWyGGL4inzq2sPmExu431Ekb9aEMn9BkPqEYFA==
+"@types/js-yaml@4.0.0":
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/@types/js-yaml/-/js-yaml-4.0.0.tgz#d1a11688112091f2c711674df3a65ea2f47b5dfb"
+  integrity sha512-4vlpCM5KPCL5CfGmTbpjwVKbISRYhduEJvvUWsH5EB7QInhEj94XPZ3ts/9FPiLZFqYO0xoW4ZL8z2AabTGgJA==
 
 "@types/[email protected]":
   version "5.0.0"
@@ -827,6 +827,11 @@ argparse@^1.0.7:
   dependencies:
     sprintf-js "~1.0.2"
 
+argparse@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/argparse/-/argparse-2.0.1.tgz#246f50f3ca78a3240f6c997e8a9bd1eac49e4b38"
+  integrity sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==
+
 arr-diff@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-4.0.0.tgz#d6461074febfec71e7e15235761a329a5dc7c520"
@@ -2858,6 +2863,13 @@ js-yaml@^3.13.1:
     argparse "^1.0.7"
     esprima "^4.0.0"
 
+js-yaml@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-4.0.0.tgz#f426bc0ff4b4051926cd588c71113183409a121f"
+  integrity sha512-pqon0s+4ScYUvX30wxQi3PogGFAlUyH0awepWvwkj4jD4v+ova3RiYw8bmA6x2rDrEaj8i/oWKoRxpVNW+Re8Q==
+  dependencies:
+    argparse "^2.0.1"
+
 jsbn@~0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"