wpewebkit: bump to version 2.34.6

This is a bug fix release in the stable 2.34 series.

Release notes:

* Fix accessibility not working when the Bubblewrap sandbox is enabled.
* Fix the build in a number of situations where the main OpenGL library
  is not called libGL or libgl, as is the case on systems that use
  libglvnd.
* Fix several crashes and rendering issues.

Annoucement:

* https://wpewebkit.org/release/wpewebkit-2.34.6.html

WPE WebKit Advisory URL:

* https://wpewebkit.org/security/WSA-2022-0003.html

recipes-browser/wpewebkit/wpewebkit_2.34.5.bb → recipes-browser/wpewebkit/wpewebkit_2.34.6.bb

@@ -7,7 +7,7 @@ SRC_URI = "\
     https://wpewebkit.org/releases/${BPN}-${PV}.tar.xz;name=tarball \
 "
 
-SRC_URI[tarball.sha256sum] = "0ef187cdcb83dbe9e7b2870f43543b68766ea3535fe8b056866e8e1d3ef02bc1"
+SRC_URI[tarball.sha256sum] = "301e895c8ed08ce7dccef3192b972f2ccfc2020463244c64069a636f2b05265f"
 
 DEPENDS += " libwpe"
 RCONFLICTS:${PN} = "libwpe (< 1.8) wpebackend-fdo (< 1.10)"