chore(deps): update dependency typescript to v4

package-lock.json

@@ -10063,9 +10063,9 @@
       }
     },
     "typescript": {
-      "version": "3.9.7",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.7.tgz",
-      "integrity": "sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==",
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.0.2.tgz",
+      "integrity": "sha512-e4ERvRV2wb+rRZ/IQeb3jm2VxBsirQLpQhdxplZ2MEzGvDkkMmPglecnNDfSUBivMjP93vRbngYYDQqQ/78bcQ==",
       "dev": true
     },
     "uglify-js": {

package.json

@@ -49,6 +49,6 @@
     "rollup-plugin-uglify": "6.0.4",
     "ts-jest": "26.2.0",
     "ts-node": "9.0.0",
-    "typescript": "3.9.7"
+    "typescript": "4.0.2"
   }
 }