Bump express from 4.19.2 to 4.21.0

Bumps [express](https://github.com/expressjs/express) from 4.19.2 to 4.21.0.
- [Release notes](https://github.com/expressjs/express/releases)
- [Changelog](https://github.com/expressjs/express/blob/4.21.0/History.md)
- [Commits](expressjs/express@4.19.2...4.21.0)

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

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

Author: dependabot[bot]

package-lock.json

@@ -22,7 +22,7 @@
     "@angular/router": "^18.0.0",
     "@angular/ssr": "^18.0.7",
     "@syncfusion/ej2-angular-pivotview": "^26.1.40",
-    "express": "^4.18.2",
+    "express": "^4.21.0",
     "rxjs": "~7.8.0",
     "tslib": "^2.3.0",
     "zone.js": "~0.14.3"