build(deps): bump qs from 4.0.0 to 6.9.4
build(deps): bump qs from 4.0.0 to 6.9.4

Bumps [qs](https://github.com/ljharb/qs) from 4.0.0 to 6.9.4.
- [Release notes](https://github.com/ljharb/qs/releases)
- [Changelog](https://github.com/ljharb/qs/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ljharb/qs/compare/v4.0.0...v6.9.4)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
ralic/express,ralic/express