Bump qs from 1.2.2 to 6.0.4

Bumps [qs](https://github.com/ljharb/qs) from 1.2.2 to 6.0.4.
- [Release notes](https://github.com/ljharb/qs/releases)
- [Changelog](https://github.com/ljharb/qs/blob/master/CHANGELOG.md)
- [Commits](ljharb/qs@v1.2.2...v6.0.4)

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

Author: dependabot[bot]

package-lock.json

@@ -74,7 +74,7 @@
     "moment": "^2.24.0",
     "ms": "^0.7.3",
     "prettier": "^1.19.1",
-    "qs": "^1.2.2",
+    "qs": "^6.0.4",
     "send": "^0.16.2",
     "serve-index": "^1.9.1",
     "simple-git": "^1.132.0",