This commit addresses a limitation in our CLI argument
checking for the hsmtool. With this update, we introduce
support for the Signet network.
In addition, it introduce a code semplification by directly passing the
BIP32 version instead of using network testnet flag. This change
improves code readability and minimaze code changes
to support other networks.
Link: https://github.com/ElementsProject/lightning/issues/6371
Reported-by: @grubles
Changelog-Fixes: hsmtool: Add support for Signet network
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>