Function approve_dissolve_multisig 

pub async fn approve_dissolve_multisig(
    quantus_client: &QuantusClient,
    caller_keypair: &QuantumKeyPair,
    multisig_address: AccountId32,
) -> Result<H256>

Approve dissolving a multisig

Requires threshold approvals. When threshold is reached, multisig is dissolved. Requirements:

• No proposals exist (active, executed, or cancelled)
• Multisig account balance must be zero
• Deposit is returned to creator

Returns

Transaction hash