Bump express

Bumps [express](https://github.com/expressjs/express) from 4.17.3 to 4.19.2.
- [Release notes](https://github.com/expressjs/express/releases)
- [Changelog](https://github.com/expressjs/express/blob/master/History.md)
- [Commits](expressjs/express@4.17.3...4.19.2)

---
updated-dependencies:
- dependency-name: express
  dependency-type: direct:development
...

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

Author: dependabot[bot]

Composer/packages/tools/language-servers/language-generation/package.json

@@ -27,7 +27,7 @@
     "@botframework-composer/test-utils": "*",
     "@types/node": "13.9.3",
     "cross-env": "7.0.3",
-    "express": "4.17.3",
+    "express": "4.19.2",
     "rimraf": "3.0.2",
     "ts-node": "^8.4.1",
     "typescript": "3.9.2",