Update dependency typescript to v4.2.2 (#19)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package-lock.json

@@ -37,7 +37,7 @@
     "nyc": "15.1.0",
     "prettier": "2.2.1",
     "ts-mocha": "8.0.0",
-    "typescript": "4.1.5",
+    "typescript": "4.2.2",
     "ync": "0.0.9"
   },
   "peerDependencies": {

package.json

@@ -3705,10 +3705,10 @@ typedarray-to-buffer@^3.1.5:
   dependencies:
     is-typedarray "^1.0.0"
 
-typescript@4.1.5:
-  version "4.1.5"
-  resolved "https://registry.npmjs.org/typescript/-/typescript-4.1.5.tgz"
-  integrity sha512-6OSu9PTIzmn9TCDiovULTnET6BgXtDYL4Gg4szY+cGsc3JP1dQL8qvE8kShTRx1NIw4Q9IBHlwODjkjWEtMUyA==
+typescript@4.2.2:
+  version "4.2.2"
+  resolved "https://registry.npmjs.org/typescript/-/typescript-4.2.2.tgz"
+  integrity sha512-tbb+NVrLfnsJy3M59lsDgrzWIflR4d4TIUjz+heUnHZwdF7YsrMTKoRERiIvI2lvBG95dfpLxB21WZhys1bgaQ==
 
 universal-user-agent@^6.0.0:
   version "6.0.0"