(Android 13, 14, 15 only) Removing screen lock deletes all API keys.

[cheeseonamonkey]

Affected Component

API Key Management

What happened?

• API keys are deleted (silently).
• Likely we were never able to add any API key without having a screen lock!

Steps to reproduce

1. (Android 13, 14, 15 only)
2. Have a screen lock PIN/Pattern.
3. Add an API key,
4. Remove the phone's secure screen lock.
5. Force-stop SwiftSlate / reboot.
6. Reopen it
7. Bug:

• API keys are deleted.
• Likely we were never able to add any API key without a screen lock.

Fix is a single API version check in KeyManager:
#142

Provider (if relevant)

Not applicable

Device & Android version

Android 12.0

Additional context

Android's own documentation specifically warns that Android 12–14 have a platform bug with this flag: if the user has no secure lock screen, unlocked-device-required keys can fail to generate/use; removing the secure lock screen can also delete those keys:
Android Docs (Google)