A player's pitch can exceed the -90/90 limit when using Full Keyboard Gameplay

When pressing the up or down arrow keys whilst having the Full Keyboard Gameplay toggle enabled, a player's pitch can exceed the limit of -90/90.

1. Steps to Reproduce
   1. Enable "Full Keyboard Gameplay" in Settings > Keyboard & Mouse
   2. Go to a world
   3. Press the up or down key until the camera stops moving.

I added a Scripting API addon that sends the current player's pitch to the Content Log. (Only works in the 1.20.60 Preview)

To use the addon:
1. Enable the Content Log in Settings > Creator > Enable Content Log GUI
2. Apply the addon to a world.

When you reproduce this issue with the addon, you can see the player's pitch become -94 when holding the up arrow key, and the player's pitch fluctuating between -94 and -98 when holding down the down arrow key.