Update dependency typescript to v3.4.1

Author: renovate-bot

package.json

@@ -30,7 +30,7 @@
   ],
   "license": "MIT",
   "dependencies": {
-    "typescript": "3.2.2",
+    "typescript": "3.4.1",
     "ts-node": "^7.0.1",
     "gluegun": "^2.1.0",
     "googleapis": "^27.0.0",

yarn.lock

@@ -4273,9 +4273,9 @@ type-check@~0.3.2:
   dependencies:
     prelude-ls "~1.1.2"
 
-typescript@3.2.2:
-  version "3.2.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.2.2.tgz#fe8101c46aa123f8353523ebdcf5730c2ae493e5"
+typescript@3.4.1:
+  version "3.4.1"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.4.1.tgz#b6691be11a881ffa9a05765a205cb7383f3b63c6"
 
 uglify-js@^3.1.4:
   version "3.4.9"