feat: add sonic testnet

Co-Authored-By: Mejuck <neroke@outlook.com>

.changeset/shiny-clocks-vanish.md

@@ -0,0 +1,5 @@
+---
+"viem": patch
+---
+
+Added Sonic Testnet.

src/chains/definitions/sonicTestnet.ts

@@ -0,0 +1,21 @@
+import { defineChain } from '../../utils/chain/defineChain.js'
+
+export const sonicTestnet = /*#__PURE__*/ defineChain({
+  id: 64_165,
+  name: 'Sonic Testnet',
+  nativeCurrency: {
+    decimals: 18,
+    name: 'Sonic',
+    symbol: 'S',
+  },
+  rpcUrls: {
+    default: { http: ['https://rpc.testnet.soniclabs.com'] },
+  },
+  blockExplorers: {
+    default: {
+      name: 'Sonic Testnet Explorer',
+      url: 'https://testnet.soniclabs.com/',
+    },
+  },
+  testnet: true,
+})

src/chains/index.ts

@@ -136,6 +136,7 @@ export { evmosTestnet } from './definitions/evmosTestnet.js'
 export { excelonMainnet } from './definitions/excelonMainnet.js'
 export { expanse } from './definitions/expanse.js'
 export { fantom } from './definitions/fantom.js'
+/** @deprecated Use `sonicTestnet` instead. */
 export { fantomSonicTestnet } from './definitions/fantomSonicTestnet.js'
 export { fantomTestnet } from './definitions/fantomTestnet.js'
 export { fibo } from './definitions/fibo.js'