fix: handle tuple array type in MapType definition

[xMuratY]

Simply fixes tuple[] discovery

ABI

{
    "inputs": [
        {
            "name": "calls",
            "type": "tuple[]",
            "internalType": "struct ProxyCall[]",
            "components": [
                {
                    "internalType": "address",
                    "name": "recipient",
                    "type": "address"
                },
                {
                    "internalType": "uint256",
                    "name": "amount",
                    "type": "uint256"
                }
            ],
        }
    ],
    "name": "execForward",
    "outputs": [],
    "stateMutability": "payable",
    "type": "function"
}

Current behavior

ContractMethod.encodeInput: (v: unknown[]) => Uint8Array<ArrayBufferLike>

Expected

ContractMethod.encodeInput: (v: {
    recipient: string;
    amount: bigint;
}[]) => Uint8Array<ArrayBufferLike>