Update dependency typescript to v4 (#117)

Co-authored-by: Renovate Bot <[email protected]>

Author: renovate[bot]

package.json

@@ -60,7 +60,7 @@
     "shipjs": "^0.20.0",
     "ts-jest": "^26.0.0",
     "tsd": "^0.13.0",
-    "typescript": "^3.9.5",
+    "typescript": "^4.0.0",
     "typescript-eslint-language-service": "^3.0.0",
     "vue": "^2.6.11",
     "vue-template-compiler": "^2.6.11"

yarn.lock

@@ -6602,10 +6602,10 @@ typescript-eslint-language-service@^3.0.0:
   dependencies:
     read-pkg-up "^7.0.0"
 
-typescript@^3.9.5:
-  version "3.9.6"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.6.tgz#8f3e0198a34c3ae17091b35571d3afd31999365a"
-  integrity sha512-Pspx3oKAPJtjNwE92YS05HQoY7z2SFyOpHo9MqJor3BXAGNaPUs83CuVp9VISFkSjyRfiTpmKuAYGJB7S7hOxw==
+typescript@^4.0.0:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.0.2.tgz#7ea7c88777c723c681e33bf7988be5d008d05ac2"
+  integrity sha512-e4ERvRV2wb+rRZ/IQeb3jm2VxBsirQLpQhdxplZ2MEzGvDkkMmPglecnNDfSUBivMjP93vRbngYYDQqQ/78bcQ==
 
 uglify-js@^3.1.4:
   version "3.7.6"