WARNING for every major version update: After the migration the LND database will be only compatible with that new version and above.
This means that the update script needs to be run each time when a clean RaspiBlitz SDcard image is used to access the LND database.
Before updating it is most recommended to make a full backup of the LND directory.
This is not be restored after LND is successfully restarted!
Run this line in the RaspiBlitz terminal to use the built-in script: