Update dependency yn to v5

Author: renovate[bot]

package.json

@@ -52,7 +52,7 @@
     "uuid": "^3.0.1",
     "v8-compile-cache": "^2.0.0",
     "validate-npm-package-license": "^3.0.4",
-    "yn": "^2.0.0"
+    "yn": "^5.0.0"
   },
   "devDependencies": {
     "babel-core": "^6.26.0",

yarn.lock

@@ -7919,7 +7919,7 @@ yargs@~3.10.0:
     decamelize "^1.0.0"
     window-size "0.1.0"
 
-yn@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/yn/-/yn-2.0.0.tgz#e5adabc8acf408f6385fc76495684c88e6af689a"
-  integrity sha1-5a2ryKz0CPY4X8dklWhMiOavaJo=
+yn@^5.0.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/yn/-/yn-5.1.0.tgz#4e7403e837b687c3708ae29dc2386e68c143d325"
+  integrity sha512-TfXLvT6eVsBNIm8rAXTwJYdQFtOXaHQ+rA7LU8HL8C/BFfaSfhvFE5T1rHAdBCbAj808HaqjXVkmo8jmeGOqhw==