feat: upgrade express from 4.21.1 to 5.0.0

Snyk has created this PR to upgrade express from 4.21.1 to 5.0.0.

See this package in npm:
https://www.npmjs.com/package/express

See this project in Snyk:
https://app.snyk.io/org/undeadgrishnackh/project/4e1d2a95-d453-4175-8288-c5c06b110573?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -51,7 +51,7 @@
     "body-parser": "^1.20.2",
     "chai": "^5.0.3",
     "dotenv": "^16.4.1",
-    "express": "^4.18.2",
+    "express": "^5.0.0",
     "mocha": "^10.2.0",
     "request": "^2.88.0",
     "slack": "^11.0.2",