server: add @types/cors devDependency for tsc in Docker build

Author: mbertelsen

server/server/package.json

@@ -14,6 +14,7 @@
   },
   "devDependencies": {
     "@types/express": "^4.17.17",
+    "@types/cors": "^2.8.12",
     "@types/node": "^18.0.0",
     "ts-node-dev": "^2.0.0",
     "typescript": "^5.0.4"