Pin confusion on lock screen

- [x] I have read the [FAQ](https://github.com/Genymobile/scrcpy/blob/master/FAQ.md).
- [x] I have searched in existing [issues](https://github.com/Genymobile/scrcpy/issues).

**Environment**
- OS: Linux
- scrcpy version: 1.21
- installation method: apt package manager
- device model: Google Pixel 6
- Android version: 13 (Graphene OS)

**Describe the bug**
I don't know if this is a bug caused by scrcpy or by android, but before 2 or 3 months ago, when on lock screen, i used to just type the password/pin with my keyboard and press enter to unlock (On the actual lock screen and not on the password screen)

However when i do this now, the password is being evaluated as the sim card PIN 

So basically to unlock the phone now, i need to trigger the lock screen, swipe up for the password screen (not mirrored) and then type the pin and enter.

Start by reproducing the lock-screen PIN behavior with scrcpy 1.21 installed via apt on Linux, using a Pixel 6 running Android 13 with Graphene OS. Compare typing on the actual lock screen with the password screen to determine whether scrcpy or Android routes the input as a SIM PIN; done means identifying the cause and restoring direct unlock or documenting the limitation.

Written by the indexing model from the issue text.