build(deps): 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
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package-lock.json

@@ -100,7 +100,7 @@
     "electron-log": "^4.4.8",
     "electron-store": "^8.1.0",
     "electron-updater": "^6.3.4",
-    "express": "^4.19.2",
+    "express": "^4.21.0",
     "ini": "^5.0.0",
     "league-connect": "^5.5.0",
     "uniqid": "^5.4.0",