Bump qs, grunt-contrib-watch and body-parser in /mica-webapp

Bumps [qs](https://github.com/ljharb/qs) to 6.4.1 and updates ancestor dependencies [qs](https://github.com/ljharb/qs), [grunt-contrib-watch](https://github.com/gruntjs/grunt-contrib-watch) and [body-parser](https://github.com/expressjs/body-parser). These dependencies need to be updated together.


Updates `qs` from 6.4.0 to 6.4.1
- [Release notes](https://github.com/ljharb/qs/releases)
- [Changelog](https://github.com/ljharb/qs/blob/main/CHANGELOG.md)
- [Commits](ljharb/qs@v6.4.0...v6.4.1)

Updates `grunt-contrib-watch` from 1.0.0 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@v1.0.0...v1.1.0)

Updates `body-parser` from 1.14.2 to 1.20.1
- [Release notes](https://github.com/expressjs/body-parser/releases)
- [Changelog](https://github.com/expressjs/body-parser/blob/master/HISTORY.md)
- [Commits](expressjs/body-parser@1.14.2...1.20.1)

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

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