Bump typescript from 3.7.3 to 3.7.4 (#7310)
Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.7.3 to 3.7.4.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](https://github.com/Microsoft/TypeScript/compare/v3.7.3...v3.7.4)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>