Describe the bug
gum confirm outputs not confirmed to the terminal when the negative action is selected.

To Reproduce
Steps to reproduce the behavior:

$ if gum confirm "Do you wanna?"; then echo "OK"; else echo "NAH"; fi
not confirmed
NAH

Expected behavior
This does not happen, or there is a flag quiet it to ensure a user can say no to a prompt in a script without having this printed each time.

Screenshots
Would essentially look the same as reproduction above.

Desktop (please complete the following information):

• OS: MacOS Sequoia 15.3
• Browser: N/A
• Version: 0.15.0

Additional context
This either:

1. Should not happen
2. Should be something that can be controlled by a flag
3. Is considered a breaking change and should say as much in the Release notes.