The utxo snapshot metadata doesn't seem to contain any block height as per the
CPP code and no such value is read few lines down by the tool code as well.
Related CPP code: bitcoin/bitcoin/blob/28.x/src/node/utxo_snapshot.h#L60-L66
Running the `dumptxoutset` command without a `type` parameter leads
to the following error. Update the tool documentation to make it
easier to follow.
`Invalid snapshot type "" specified. Please specify "rollback" or "latest"`
