Bump qs from 6.14.2 to 6.15.2

Bumps [qs](https://github.com/ljharb/qs) from 6.14.2 to 6.15.2.
- [Changelog](https://github.com/ljharb/qs/blob/main/CHANGELOG.md)
- [Commits](ljharb/qs@v6.14.2...v6.15.2)

---
updated-dependencies:
- dependency-name: qs
  dependency-version: 6.15.2
  dependency-type: direct:production
...

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

Author: dependabot[bot]

package-lock.json

@@ -97,7 +97,7 @@
     "postcss-loader": "^4.0.4",
     "prop-types": "^15.7.2",
     "q": "^1.5.1",
-    "qs": "^6.14.2",
+    "qs": "^6.15.2",
     "ramda": "^0.27.1",
     "react": "^16.14.0",
     "react-dom": "^16.14.0",