Bump typescript from 4.1.4 to 4.1.5 (#314)

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 4.1.4 to 4.1.5.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v4.1.4...v4.1.5)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>