fix(deps): update dependency express to v4.21.1 (#959)

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

Author: renovate[bot]

package.json

@@ -69,7 +69,7 @@
   },
   "dependencies": {
     "@babel/runtime": "7.26.0",
-    "express": "4.19.2",
+    "express": "4.21.1",
     "serverless-http": "1.10.1",
     "source-map-support": "0.5.21",
     "winston": "3.5.0"