Bump path-to-regexp and express in /http-gateway/web

Bumps [path-to-regexp](https://github.com/pillarjs/path-to-regexp) to 0.1.12 and updates ancestor dependency [express](https://github.com/expressjs/express). These dependencies need to be updated together.


Updates `path-to-regexp` from 0.1.7 to 0.1.12
- [Release notes](https://github.com/pillarjs/path-to-regexp/releases)
- [Changelog](https://github.com/pillarjs/path-to-regexp/blob/master/History.md)
- [Commits](pillarjs/path-to-regexp@v0.1.7...v0.1.12)

Updates `express` from 4.19.2 to 4.21.2
- [Release notes](https://github.com/expressjs/express/releases)
- [Changelog](https://github.com/expressjs/express/blob/4.21.2/History.md)
- [Commits](expressjs/express@4.19.2...4.21.2)

---
updated-dependencies:
- dependency-name: path-to-regexp
  dependency-type: indirect
- dependency-name: express
  dependency-type: direct:development
...

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

http-gateway/web/packages/mock-server/package.json

@@ -10,7 +10,7 @@
   "author": "",
   "license": "ISC",
   "devDependencies": {
-    "express": "^4.19.2"
+    "express": "^4.21.2"
   },
   "dependencies": {
     "body-parser": "^1.20.2",