wpewebkit: bump version to 2.34.7

commit 77088643c1ba85da4dc08f53f5eda167cea9b52c (HEAD -> psaavedra/fixes, origin/psaavedra/fixes)
Author: Pablo Saavedra <psaavedra@igalia.com>
Date:   Mon Apr 11 11:27:44 2022 +0200

    wpewebkit: Fix build WPE no X11 headers present

    Upstream-Status: Submitted [https://bugs.webkit.org/show_bug.cgi?id=239039]
    Signed-off-by: Pablo Saavedra <psaavedra@igalia.com>

commit 8123c76442a161ede5770efc1b7575c37905e64a
Author: Pablo Saavedra <psaavedra@igalia.com>
Date:   Mon Apr 11 11:13:22 2022 +0200

    wpewebkit: Bump up version to 2.34.7

    * Fix several crashes and rendering issues.
    * Release notes: https://wpewebkit.org/release/wpewebkit-2.34.7.html

Igalia / meta-webkit

wpewebkit: bump version to 2.34.7 #364