Add zetachainAthens3 testnet

.changeset/smooth-plums-swim.md

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+---
+"@wagmi/chains": minor
+---
+
+Add zetachainAthens3 testnet

packages/chains/src/zetachainAthens3.ts

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+import { Chain } from './types'
+
+export const zetachainAthens3 = {
+  id: 7001,
+  name: 'ZetaChain Athens 3',
+  network: 'zetachain-athens-evm',
+  nativeCurrency: {
+    decimals: 18,
+    name: 'Zeta',
+    symbol: 'aZETA',
+  },
+  rpcUrls: {
+    public: {
+      http: ['https://zetachain-athens-evm.blockpi.network/v1/rpc/public'],
+    },
+    default: {
+      http: ['https://zetachain-athens-evm.blockpi.network/v1/rpc/public'],
+    },
+  },
+  blockExplorers: {
+    default: {
+      name: 'ZetaScan',
+      url: 'https://athens3.explorer.zetachain.com',
+    },
+  },
+  testnet: true,
+} as const satisfies Chain