chore(deps-dev): bump underscore from 1.8.3 to 1.12.1 in /lib/vscode

Bumps [underscore](https://github.com/jashkenas/underscore) from 1.8.3 to 1.12.1.
- [Release notes](https://github.com/jashkenas/underscore/releases)
- [Commits](https://github.com/jashkenas/underscore/compare/1.8.3...1.12.1)

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