Bump qs and body-parser

Bumps [qs](https://github.com/ljharb/qs) to 6.11.0 and updates ancestor dependency [body-parser](https://github.com/expressjs/body-parser). These dependencies need to be updated together.


Updates `qs` from 6.7.0 to 6.11.0
- [Changelog](https://github.com/ljharb/qs/blob/main/CHANGELOG.md)
- [Commits](ljharb/qs@v6.7.0...v6.11.0)

Updates `body-parser` from 1.19.0 to 1.20.2
- [Release notes](https://github.com/expressjs/body-parser/releases)
- [Changelog](https://github.com/expressjs/body-parser/blob/master/HISTORY.md)
- [Commits](expressjs/body-parser@1.19.0...1.20.2)

---
updated-dependencies:
- dependency-name: qs
  dependency-type: indirect
- dependency-name: body-parser
  dependency-type: direct:production
...

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

package.json

@@ -24,7 +24,7 @@
   "homepage": "https://github.com/turt2live/matrix-appservice-webhooks#readme",
   "dependencies": {
     "bluebird": "^3.5.2",
-    "body-parser": "^1.18.3",
+    "body-parser": "^1.20.2",
     "chalk": "^2.4.1",
     "cheerio": "^1.0.0-rc.2",
     "db-migrate": "^0.11.3",