Bumps [underscore](https://github.com/jashkenas/underscore) from 1.10.2 to 1.13.1. - [Release notes](https://github.com/jashkenas/underscore/releases) - [Commits](https://github.com/jashkenas/underscore/compare/1.10.2...1.13.1) Signed-off-by: dependabot[bot] <support@github.com>