Bump qs and grunt-contrib-watch

Bumps [qs](https://github.com/ljharb/qs) to 6.5.3 and updates ancestor dependency [grunt-contrib-watch](https://github.com/gruntjs/grunt-contrib-watch). These dependencies need to be updated together.


Updates `qs` from 6.5.2 to 6.5.3
- [Release notes](https://github.com/ljharb/qs/releases)
- [Changelog](https://github.com/ljharb/qs/blob/main/CHANGELOG.md)
- [Commits](ljharb/qs@v6.5.2...v6.5.3)

Updates `grunt-contrib-watch` from 1.0.1 to 1.1.0
- [Release notes](https://github.com/gruntjs/grunt-contrib-watch/releases)
- [Changelog](https://github.com/gruntjs/grunt-contrib-watch/blob/main/CHANGELOG)
- [Commits](gruntjs/grunt-contrib-watch@v1.0.1...v1.1.0)

---
updated-dependencies:
- dependency-name: qs
  dependency-type: indirect
- dependency-name: grunt-contrib-watch
  dependency-type: direct:development
...

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