Update dependency @types/express to v4.17.19

Author: renovate[bot]

package-lock.json

@@ -11,7 +11,7 @@
     "@testing-library/dom": "9.3.3",
     "@testing-library/user-event": "13.5.0",
     "@types/eventsource": "1.1.12",
-    "@types/express": "4.17.18",
+    "@types/express": "4.17.19",
     "@types/mocha": "10.0.2",
     "@types/node": "18.18.4",
     "@types/node-fetch": "2.6.6",