Bump typescript from 3.9.7 to 4.0.2 (#31)

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.9.7 to 4.0.2.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v3.9.7...v4.0.2)

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

package-lock.json

@@ -31,7 +31,7 @@
   "devDependencies": {
     "eslint": "7.7.0",
     "prettier-config-web-scrobbler": "0.1.0",
-    "typescript": "3.9.7"
+    "typescript": "4.0.2"
   },
   "peerDependencies": {
     "eslint": ">=7"