fix(deps): update dependency express to v4.21.2 (#650)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

apps/25--5-clock/package-lock.json

@@ -10,7 +10,7 @@
   },
   "dependencies": {
     "dotenv": "16.0.0",
-    "express": "4.19.2"
+    "express": "4.21.2"
   },
   "devDependencies": {
     "@babel/core": "7.26.10",

apps/25--5-clock/package.json

@@ -16,7 +16,7 @@
     "chai-http": "4.4.0",
     "cors": "2.8.5",
     "dotenv": "14.3.2",
-    "express": "4.19.2",
+    "express": "4.21.2",
     "mocha": "9.2.2"
   },
   "license": "MIT"