chore(deps-dev): bump typescript (#96)

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 4.3.0-dev.20210413 to 4.3.0-dev.20210430.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](https://github.com/Microsoft/TypeScript/commits)

Signed-off-by: dependabot[bot] <support@github.com>

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

Author: dependabot[bot]

package-lock.json

@@ -51,7 +51,7 @@
     "prettier": "^2.2.1",
     "print-diff": "^1.0.0",
     "styleless-innertext": "^1.1.3",
-    "typescript": "^4.3.0-dev.20210327",
+    "typescript": "^4.3.0-dev.20210430",
     "webidl2": "^24.0.1"
   },
   "files": [