Update hip-857.md to Accepted (#888)

Signed-off-by: Michael Garber <[email protected]>

HIP/hip-857.md

@@ -3,14 +3,15 @@ hip: 857
 title: NFT Allowances REST API
 author: Mugdha Goel <[email protected]>
 working-group: Steven Sheehy (@steven-sheehy),Ashe Oro (@Ashe-Oro)
+requested-by: Hashpack and Zuse Marketplace
 type: Standards Track
 category: Mirror
 needs-council-approval: Yes
-status: Council Review
+status: Accepted
 last-call-date-time: 2024-02-01T07:00:00Z
 created: 2023-12-07
 discussions-to: https://github.com/hashgraph/hedera-improvement-proposal/discussions/858
-updated: 2024-02-07
+updated: 2024-02-15
 ---
 
 ## Abstract