Bump qs and tfx-cli in /build-results-enhancer

Bumps [qs](https://github.com/ljharb/qs) to 6.11.0 and updates ancestor dependency [tfx-cli](https://github.com/Microsoft/tfs-cli). These dependencies need to be updated together.


Updates `qs` from 3.1.0 to 6.11.0
- [Release notes](https://github.com/ljharb/qs/releases)
- [Changelog](https://github.com/ljharb/qs/blob/main/CHANGELOG.md)
- [Commits](https://github.com/ljharb/qs/compare/v3.1.0...v6.11.0)

Updates `tfx-cli` from 0.3.49 to 0.12.0
- [Release notes](https://github.com/Microsoft/tfs-cli/releases)
- [Commits](https://github.com/Microsoft/tfs-cli/commits)

---
updated-dependencies:
- dependency-name: qs
  dependency-type: indirect
- dependency-name: tfx-cli
  dependency-type: direct:development
...

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

build-results-enhancer/package.json

@@ -16,7 +16,7 @@
   "devDependencies": {
     "ncp": "^2.0.0",
     "rimraf": "^2.5.4",
-    "tfx-cli": "^0.3.45",
+    "tfx-cli": "^0.12.0",
     "typescript": "^2.6.1"
   },
   "dependencies": {