fix: update CFP end date

Author: anyulled

src/data/2025.json

@@ -5,7 +5,7 @@
   },
   "cfp": {
     "startDay": "2025-01-01T00:00:00",
-    "endDay": "2025-04-01T00:00:00",
+    "endDay": "2025-03-01T00:00:00",
     "link": "https://sessionize.com/devbcn-2025/"
   },
   "diversity": false,