Sound null safety request

[Add00w]

Please upgrade the package to support sound null safety, now it gives me the following error

Error: Cannot run with sound null safety, because the following dependencies don't support null safety:

• package:starflut
• package:uuid
• package:crypto
• package:convert

[longtruongg]

you can use this, step by step to upgrade nullsafety https://dart.dev/null-safety/migration-guide