libinput: upgrade 1.28.1 -> 1.29.0

libinput: upgrade 1.28.1 -> 1.29.0

Changelog:
===========
- High-resolution scroll wheels have better heuristics to avoid inadvertent
  scrolls. This should also help with not-so-high-resolution scroll wheels which
  can skip those heuristics now, resulting in better responsiveness.
- Virtual devices (e.g. uinput) are now detected in libinput and some internal
  heuristics are disabled for those (e.g. tablet smoothing)
- Tablet tools with an fixed eraser button (almost all these days) can now
  configure that eraser button to be a regular button instead.
- Jumping cursors on Asus "ASUE..." touchpads have lost their excitement and
  are no longer jumping.
- libinput now uses a plugin pipeline internally. This prepares the way for
  public plugins, planned for libinput 1.30.
- mtdev is now an optional dependency
- libinput debug-tablet-pad is a new tool for interactive tablet pad debugging
- a lot of internal code modernization, making the code nicer to work on and
  test cases easier to write

Release notes:
https://gitlab.freedesktop.org/libinput/libinput/-/releases/1.29.0

Signed-off-by: Liu Yiding <liuyd.fnst@fujitsu.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>