build: bump express to 4.21.0

package.json

@@ -16,6 +16,7 @@
     "format": "prettier --config .prettierrc 'src/**/*.ts' --write",
     "test": "jest --runInBand --detectOpenHandles",
     "prepare": "husky install",
+    "audit": "audit-ci",
     "db:generate": "prisma generate",
     "db:migrate": "prisma migrate deploy",
     "db:reset": "prisma migrate reset --force"
@@ -31,7 +32,7 @@
   "dependencies": {
     "@prisma/client": "^5.17.0",
     "cors": "^2.8.5",
-    "express": "^4.19.2",
+    "express": "^4.21.0",
     "express-rate-limit": "^7.3.1",
     "express-rate-limiter": "^1.3.1",
     "express-session": "^1.18.0",
@@ -55,6 +56,7 @@
     "@types/supertest": "^6.0.2",
     "@typescript-eslint/eslint-plugin": "^7.7.1",
     "@typescript-eslint/parser": "^7.7.1",
+    "audit-ci": "^7.1.0",
     "eslint": "^8.44.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-tsdoc": "^0.3.0",