Update ticket sale date

Author: anyulled

src/data/2025.json

@@ -34,7 +34,7 @@
   "startDay": "2025-07-08T09:00:00+01:00",
   "tickets": {
     "startDay": "2025-02-01T00:00:00+01:00",
-    "endDay": "2025-06-01T00:00:00+01:00"
+    "endDay": "2025-07-01T00:00:00+01:00"
   },
   "title": "DevBcn - Barcelona Developers Conference ",
   "trackNumber": 5,