Function fedimint_dummy_client::db::migrate_to_v1

pub async fn migrate_to_v1(
    dbtx: &mut DatabaseTransaction<'_>
) -> Result<Option<(Vec<DynState>, Vec<DynState>)>>

Migrates the database from version 0 to version 1 by removing DummyClientFundsKeyV0 and inserting DummyClientFundsKeyV1. The new key/value pair has an Amount as the value.