Bump lodash and grunt

Bumps [lodash](https://github.com/lodash/lodash) and [grunt](https://github.com/gruntjs/grunt). These dependencies needed to be updated together.

Updates `lodash` from 4.17.4 to 4.17.21
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](lodash/lodash@4.17.4...4.17.21)

Updates `grunt` from 1.0.1 to 1.5.3
- [Release notes](https://github.com/gruntjs/grunt/releases)
- [Changelog](https://github.com/gruntjs/grunt/blob/main/CHANGELOG)
- [Commits](gruntjs/grunt@v1.0.1...v1.5.3)

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

Signed-off-by: dependabot[bot] <[email protected]>