chore: upgrade to cron v4 (#19664)

server/package.json

@@ -40,7 +40,7 @@
     "@nestjs/event-emitter": "^3.0.0",
     "@nestjs/platform-express": "^11.0.4",
     "@nestjs/platform-socket.io": "^11.0.4",
-    "@nestjs/schedule": "^5.0.0",
+    "@nestjs/schedule": "^6.0.0",
     "@nestjs/swagger": "^11.0.2",
     "@nestjs/websockets": "^11.0.4",
     "@opentelemetry/api": "^1.9.0",
@@ -69,7 +69,7 @@
     "compression": "^1.8.0",
     "cookie": "^1.0.2",
     "cookie-parser": "^1.4.7",
-    "cron": "^3.5.0",
+    "cron": "4.3.0",
     "exiftool-vendored": "^28.8.0",
     "express": "^5.1.0",
     "fast-glob": "^3.3.2",