Bump express from 4.19.2 to 4.20.0

Bumps [express](https://github.com/expressjs/express) from 4.19.2 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@4.19.2...4.20.0)

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

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

package.json

@@ -25,7 +25,7 @@
     "email-validator": "^2.0.4",
     "escapeshellarg": "^0.1.0",
     "eslint": "^6.8.0",
-    "express": "^4.19.2",
+    "express": "^4.20.0",
     "express-prom-bundle": "^5.1.5",
     "express-session": "^1.17.1",
     "express-static-gzip": "^2.0.6",