Bump path-to-regexp and express (#6278)

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 0.1.10 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@v0.1.10...v0.1.12)

Updates `express` from 4.21.1 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@4.21.1...4.21.2)

---
updated-dependencies:
- dependency-name: path-to-regexp
  dependency-version: 0.1.12
  dependency-type: indirect
- dependency-name: express
  dependency-version: 4.21.2
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

code-samples/serving/cloudevents/cloudevents-nodejs/package-lock.json

@@ -14,7 +14,7 @@
   "license": "Apache-2.0",
   "dependencies": {
     "cloudevents": "^6.0.1",
-    "express": "^4.21.1",
+    "express": "^4.21.2",
     "nodemon": "^2.0.20"
   },
   "devDependencies": {