chore(deps): bump express and @types/express

Bumps [express](https://github.com/expressjs/express) and [@types/express](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/express). These dependencies needed to be updated together.

Updates `express` from 4.22.1 to 5.2.1
- [Release notes](https://github.com/expressjs/express/releases)
- [Changelog](https://github.com/expressjs/express/blob/master/History.md)
- [Commits](expressjs/express@v4.22.1...v5.2.1)

Updates `@types/express` from 4.17.25 to 5.0.6
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/express)

---
updated-dependencies:
- dependency-name: express
  dependency-version: 5.2.1
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: "@types/express"
  dependency-version: 5.0.6
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

examples/ucp-webhook-express/package.json

@@ -14,10 +14,10 @@
     "@peac/audit": "workspace:*",
     "@peac/crypto": "workspace:*",
     "@peac/mappings-ucp": "workspace:*",
-    "express": "^4.22.1"
+    "express": "^5.2.1"
   },
   "devDependencies": {
-    "@types/express": "^4.17.21",
+    "@types/express": "^5.0.6",
     "@types/node": "^22.19.11",
     "tsx": "^4.21.0",
     "typescript": "^5.3.3"

packages/middleware-express/package.json

@@ -49,9 +49,9 @@
   },
   "devDependencies": {
     "@peac/crypto": "workspace:*",
-    "@types/express": "^4.17.21",
+    "@types/express": "^5.0.6",
     "@types/node": "^22.19.11",
-    "express": "^4.18.2",
+    "express": "^5.2.1",
     "supertest": "^6.3.3",
     "@types/supertest": "^6.0.2",
     "typescript": "^5.3.3",