Merge pull request #354 from BitGo/CECHO-864-xtzevm-testnet-migration

fix: update xtzevm testnet chain ID to shadownet (127823)

Author: manojkumar138

config/chainIds.ts

@@ -107,7 +107,7 @@ export const CHAIN_IDS = {
   OKB_TESTNET: 1952,
   ZKSYNCERA_TESTNET: 300,
   ARCUSDC_TESTNET: 5042002,
-  XTZEVM_TESTNET: 128123,
+  XTZEVM_TESTNET: 127823,
   MORPHETH_TESTNET: 2910,
   CHILIZ_TESTNET: 88882,
   UNICHAIN_TESTNET: 1301,