[Bug] Cannot enable auto-shift and HOLD_ON_OTHER_KEY_PRESS_PER_KEY at the same time

[nicknimchuk]

Describe the Bug

The function prototype for get_hold_on_other_key_press is missing from /quantum/action_tapping.h. This usually doesn't cause a problem, even with HOLD_ON_OTHER_KEY_PRESS_PER_KEY enabled in config.h; however, with auto-shift also enabled, the following error is generated while compiling:

Compiling: quantum/process_keycode/process_auto_shift.c                                            quantum/process_keycode/process_auto_shift.c: In function 'process_auto_shift':
quantum/process_keycode/process_auto_shift.c:406:23: error: implicit declaration of function 'get_hold_on_other_key_press' [-Werror=implicit-function-declaration]
  406 |                     ? get_hold_on_other_key_press(keycode, record)
      |                       ^~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1.exe: all warnings being treated as errors

Adding the prototype in action_tapping.h with the other mod-tap prototypes fixes the error.

Keyboard Used

No response

Link to product page (if applicable)

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Operating System

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qmk doctor Output

No response

Is AutoHotKey / Karabiner installed

• AutoHotKey (Windows)
• Karabiner (macOS)

Other keyboard-related software installed

No response

Additional Context

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