Update evm.mdx (#675)

fixing idex explorer

Author: KemarTiti

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

@@ -117,7 +117,7 @@ Pyth is currently available on the EVM networks below using Pyth Stable price so
 | Fuji (Avalanche testnet)          | [`0x23f0e8FAeE7bbb405E7A7C3d60138FCfd43d7509`](https://testnet.snowtrace.io/address/0x23f0e8FAeE7bbb405E7A7C3d60138FCfd43d7509)                                              |
 | Hedera testnet                    | [`0xa2aa501b19aff244d90cc15a4cf739d2725b5729`](https://hashscan.io/testnet/contract/0.0.3042133)                                                                             |
 | HyperEVM testnet                  | [`0x2880aB155794e7179c9eE2e38200202908C17B43`](https://testnet.purrsec.com/address/0x2880ab155794e7179c9ee2e38200202908c17b43)                                               |
-| XCHAIN (IDEX) testnet             | [`0x2880aB155794e7179c9eE2e38200202908C17B43`](https://xchain-testnet-explorer.idex.io/address/0x2880aB155794e7179c9eE2e38200202908C17B43)                                   |
+| XCHAIN (IDEX) testnet             | [`0x2880aB155794e7179c9eE2e38200202908C17B43`](https://xchain-testnet-explorer.kuma.bid/address/0x2880aB155794e7179c9eE2e38200202908C17B43)                                  |
 | Injective inEVM testnet           | [`0xA2aa501b19aff244D90cc15a4Cf739D2725B5729`](https://inevm-testnet.explorer.caldera.xyz/address/0xA2aa501b19aff244D90cc15a4Cf739D2725B5729)                                |
 | Kakarot Sepolia testnet           | [`0xe9d69CdD6Fe41e7B621B4A688C5D1a68cB5c8ADc`](https://sepolia.kakarotscan.org/address/0xe9d69CdD6Fe41e7B621B4A688C5D1a68cB5c8ADc)                                           |
 | Kava testnet                      | [`0xfA25E653b44586dBbe27eE9d252192F0e4956683`](https://explorer.testnet.kava.io/address/0xfA25E653b44586dBbe27eE9d252192F0e4956683)                                          |