Cyberduck 9.1.6 does not read SSH key from SSH agent

[TKLCZ]

Describe the bug
After some Cyberduck update, my SFTP connections stops work. My SSH key is stored in macOS's system SSH agent. Everything works correctly in other apps like Terminal or Fork Lift.

To Reproduce
Steps to reproduce the behavior:

1. Create SFTP connection in Cyberduck with URL and username only (without password or path to key)
2. Load your SSH key into system SSH agent
3. Try to connect
4. You'll get a "Enter your password" dialog only, connection will not be established

Expected behavior
Connection will be established

Desktop (please complete the following information):

• OS: macOS
• Version 15.5