feat: add mitosis testnet (#3111)

* feat: add mitosis testnet

* Update mitosisTestnet.ts

---------

Co-authored-by: jxom <7336481+jxom@users.noreply.github.com>

.changeset/red-eyes-hammer.md

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

src/chains/definitions/mitosisTestnet.ts

@@ -0,0 +1,19 @@
+import { defineChain } from '../../utils/chain/defineChain.js'
+
+export const mitosisTestnet = /*#__PURE__*/ defineChain({
+  id: 124_832,
+  name: 'Mitosis Testnet',
+  nativeCurrency: { name: 'MITO', symbol: 'MITO', decimals: 18 },
+  rpcUrls: {
+    default: {
+      http: ['https://rpc.testnet.mitosis.org'],
+    },
+  },
+  blockExplorers: {
+    default: {
+      name: 'Mitosis testnet explorer',
+      url: 'https://testnet.mitosiscan.xyz',
+    },
+  },
+  testnet: true,
+})

src/chains/index.ts

@@ -274,6 +274,7 @@ export { mev } from './definitions/mev.js'
 export { mevTestnet } from './definitions/mevTestnet.js'
 export { mint } from './definitions/mint.js'
 export { mintSepoliaTestnet } from './definitions/mintSepoliaTestnet.js'
+export { mitosisTestnet } from './definitions/mitosisTestnet.js'
 export { mode } from './definitions/mode.js'
 export { modeTestnet } from './definitions/modeTestnet.js'
 export { moonbaseAlpha } from './definitions/moonbaseAlpha.js'