Update 2025-06-28.json

ravixalgorithm · web-flow · commit 27de864e701a · 2025-06-28T14:22:05.000+05:30
diff --git a/challenges/2025-06-28.json b/challenges/2025-06-28.json
@@ -1,3 +1,4 @@
+[
   {
     "event": "Profile Submission [PS]",
     "date": "2025-06-28",
