gum confirm no longer lets you disable negative message

[txotxopue]

Describe the bug
Prior to v0.14.0 you could execute:
gum confirm --affirmative="OK" --negative="" "Warning!"
And get a dialog with just the affirmative button. That's no longer the case. Now you get an empty negative button too.

To Reproduce
Just execute:
gum confirm --affirmative="OK" --negative="" "Warning!"

Expected behavior
Get a dialog with just the affirmative button.

Desktop (please complete the following information):

• OS: Linux
• Version v0.14.0

[maaslalani]

Hey @txotxopue, thanks for the issue. This is fixed in huh and will be fixed in gum soon as well after we bump the dependency!