chore: add xion testnet 2 (#642)

Author: ali-bahjati

pages/price-feeds/contract-addresses/cosmwasm.mdx

@@ -14,7 +14,7 @@ Pyth is currently available on the following cosmwasm chains:
 | Sei Pacific 1     | `sei15d2tyq2jzxmpg32y3am3w62dts32qgzmds9qnr6c87r0gwwr7ynqal0x38`     |
 | Neutron Pion 1    | `neutron15ldst8t80982akgr8w8ekcytejzkmfpgdkeq4xgtge48qs7435jqp87u3t` |
 | Juno              | `juno1eacsrua27njc35pxz37y97gmcjs899t59f8pf0rkejjyvtmhws5q6lxsdd`    |
-| Xion testnet      | `xion1w39ctwxxhxxc2kxarycjxj9rndn65gf8daek7ggarwh3rq3zl0lqqllnmt`    |
+| Xion testnet 2    | `xion1wptw89weav8tnpgxg4fyhcahgk8yy99lka3w308536ktadkvjwxqe463hl`    |
 
 ### Beta