package/wpewebkit: bump to version 2.34.1

Update to a new major release which brings in improvements and a number
of new features. Release notes:

  https://wpewebkit.org/release/wpewebkit-2.34.0.html
  https://wpewebkit.org/release/wpewebkit-2.34.1.html



Some of the new features require additional dependencies: HTTP/2
requires libsoup3, which is not yet in packaged in Buildroot, and
disabled at the moment (with -DUSE_SOUP2=ON, to keep using libsoup2);
and the color management support needs LCMS2 (which will be enabled
in a follow-up patch.)

Signed-off-by: Adrian Perez de Castro <aperez@igalia.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>