Bump underscore from 1.11.0 to 1.13.6 (#1280)

Bumps [underscore](https://github.com/jashkenas/underscore) from 1.11.0 to 1.13.6.
- [Commits](jashkenas/underscore@1.11.0...1.13.6)

---
updated-dependencies:
- dependency-name: underscore
  dependency-type: indirect
...

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

Author: dependabot[bot]