fix: delete team bug when instant meeting token exist (calcom#23553)

Author: Udit-takkar

packages/prisma/migrations/20250903165210_add_on_cascade/migration.sql

@@ -0,0 +1,5 @@
+-- DropForeignKey
+ALTER TABLE "InstantMeetingToken" DROP CONSTRAINT "InstantMeetingToken_teamId_fkey";
+
+-- AddForeignKey
+ALTER TABLE "InstantMeetingToken" ADD CONSTRAINT "InstantMeetingToken_teamId_fkey" FOREIGN KEY ("teamId") REFERENCES "Team"("id") ON DELETE CASCADE ON UPDATE CASCADE;

packages/prisma/schema.prisma

@@ -702,7 +702,7 @@ model InstantMeetingToken {
   token     String   @unique
   expires   DateTime
   teamId    Int
-  team      Team     @relation(fields: [teamId], references: [id])
+  team      Team     @relation(fields: [teamId], references: [id], onDelete: Cascade)
   bookingId Int?     @unique
   booking   Booking? @relation(fields: [bookingId], references: [id], onDelete: Cascade)