build(deps): bump express from 4.18.2 to 4.20.0 in /server

Bumps [express](https://github.com/expressjs/express) from 4.18.2 to 4.20.0.
- [Release notes](https://github.com/expressjs/express/releases)
- [Changelog](https://github.com/expressjs/express/blob/master/History.md)
- [Commits](expressjs/express@4.18.2...4.20.0)

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

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

server/package.json

@@ -43,7 +43,7 @@
     "cors": "^2.8.5",
     "dotenv": "16.1.4",
     "errorhandler": "1.5.1",
-    "express": "4.18.2",
+    "express": "4.20.0",
     "hot-shots": "^10.0.0",
     "http-terminator": "^3.2.0",
     "JSONStream": "^1.3.5",