build(deps-dev): bump typescript from 3.9.9 to 4.2.2 (#184)

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.9.9 to 4.2.2.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v3.9.9...v4.2.2)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -55,7 +55,7 @@
     "selenium-webdriver": "^4.0.0-alpha.7",
     "ts-jest": "^25.3.1",
     "typedoc": "^0.20.10",
-    "typescript": "^3.8.3"
+    "typescript": "^4.2.2"
   },
   "publishConfig": {
     "access": "public",