Update hip-1259.md to correct headers (#1305)

Signed-off-by: Michael Garber <michael.garber@hashgraph.com>

Author: mgarbs

HIP/hip-1259.md

@@ -6,8 +6,8 @@ working-group: Richard Bair<@rbair23>, Jasper Potts<@jasperpotts>, Atul Mahamuni
 requested-by: Hashgraph
 type: Standards Track
 category: Core
-needs-hiero-review: Yes
-needs-hedera-approval: Yes
+needs-hiero-approval: Yes
+needs-hedera-review: Yes
 status: Approved
 created: 2025-07-11
 last-call-date-time: 2025-08-12