Bump braces and grunt

Bumps [braces](https://github.com/micromatch/braces) to 3.0.3 and updates ancestor dependency [grunt](https://github.com/gruntjs/grunt). These dependencies need to be updated together.


Updates `braces` from 2.3.2 to 3.0.3
- [Changelog](https://github.com/micromatch/braces/blob/master/CHANGELOG.md)
- [Commits](https://github.com/micromatch/braces/commits/3.0.3)

Updates `grunt` from 1.3.0 to 1.6.1
- [Release notes](https://github.com/gruntjs/grunt/releases)
- [Changelog](https://github.com/gruntjs/grunt/blob/main/CHANGELOG)
- [Commits](gruntjs/grunt@v1.3.0...v1.6.1)

---
updated-dependencies:
- dependency-name: braces
  dependency-type: indirect
- dependency-name: grunt
  dependency-type: direct:development
...

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