chore(deps): update dependency typescript to v3.4.2

Author: renovate-bot

package.json

@@ -26,6 +26,6 @@
     "@types/ws": "6.0.1",
     "semantic-release": "15.13.3",
     "ts-node": "8.0.2",
-    "typescript": "3.3.3"
+    "typescript": "3.4.2"
   }
 }

yarn.lock

@@ -4700,10 +4700,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@3.3.3:
-  version "3.3.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.3.3.tgz#f1657fc7daa27e1a8930758ace9ae8da31403221"
-  integrity sha512-Y21Xqe54TBVp+VDSNbuDYdGw0BpoR/Q6wo/+35M8PAU0vipahnyduJWirxxdxjsAkS7hue53x2zp8gz7F05u0A==
+typescript@3.4.2:
+  version "3.4.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.4.2.tgz#9ed4e6475d906f589200193be056f5913caed481"
+  integrity sha512-Og2Vn6Mk7JAuWA1hQdDQN/Ekm/SchX80VzLhjKN9ETYrIepBFAd8PkOdOTK2nKt0FCkmMZKBJvQ1dV1gIxPu/A==
 
 uglify-js@^3.1.4:
   version "3.4.9"