feat: add treasure batch contract address (#4991)

### Description

- Multicall3 is at a nonstandard address due to it being a zksync chain

### Drive-by changes

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### Related issues

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- Fixes #[issue number here]
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### Backward compatibility

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### Testing

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rust/main/config/mainnet_config.json

@@ -6322,6 +6322,7 @@
       "validatorAnnounce": "0x1196055C61af3e3DA6f8458B07b255a72b64Bcf7"
     },
     "treasure": {
+      "batchContractAddress": "0x2e29fe39496a56856D8698bD43e1dF4D0CE6266a",
       "blockExplorers": [
         {
           "apiUrl": "https://rpc-explorer-verify.treasure.lol/contract_verification",