deps: bump typescript from 4.0.2 to 4.0.3 (#490)

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 4.0.2 to 4.0.3.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v4.0.2...v4.0.3)

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

@@ -79,6 +79,6 @@
     "prettier": "2.1.2",
     "standard-version": "^9.0.0",
     "ts-jest": "^26.4.0",
-    "typescript": "^4.0.2"
+    "typescript": "^4.0.3"
   }
 }