add buck sui pusher (#431)

* add buck sui pusher

* graz update

* fix

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Co-authored-by: Aditya Arora <arora.aditya520@gmail.com>

Author: mariobern

pages/price-feeds/sponsored-feeds.mdx

@@ -88,6 +88,7 @@ The price feeds listed in the table below are currently sponsored in Sui mainnet
 | AUSD/USD  | `d9912df360b5b7f21a122f15bdd5e27f62ce5e72bd316c291f7c86620e07fb2a` |
 | POL/USD   | `ffd11c5a1cfd42f80afb2df4d9f264c15f956d68153335374ec10722edd70472` |
 | FUD/USD   | `6a4090703da959247727f2b490eb21aea95c8684ecfac675f432008830890c75` |
+| BUCK/USD  | `fdf28a46570252b25fd31cb257973f865afc5ca2f320439e45d95e0394bc7382` |
 
 ## Aptos