gtk3: Update version from 3.16.6 to 3.22.26

Update to GTK+ 3.22.26 fixing [\[Bug 114281\] AutoFilter drop-down menu
items invisible]
(https://bugs.documentfoundation.org/show_bug.cgi?id=114281) reported by
Thomas R..

Announcement from September 2016 [1]:

> What's new in 3.22
> ==================
>
> The 3.22 release is the last development release in the GTK+ 3. series.
> GTK+ 3.22 will be maintained as the long-term stable version of GTK+ 3,
> and new development will move to the GTK+ 3.90.x releases. To learn more
> about the GTK+ roadmap, read:
>
>  https://blog.gtk.org/2016/09/01/versioning-and-long-term-stability-promise-in-gtk
>
> Major new features include:
>
> * The Wayland backend has support for drawing tablets
>
> * The Wayland backend requires xdg-shell v6
>
> * We have a gesture API for tablet support, GtkPadController
>
> * GdkMonitor offers an API for richer information about connected outputs
>
> * GdkGLContext supports GLES
>
> * GtkScrolledWindow has new max-content-width/height properties that can
>   affect the sizing behavior
>
> * GtkShortcutLabel is a new widget that can display keyboard shortcuts
>   in the same way that GtkShortcutWindow does
>
> * A number of GTK+ APIs will now transparently use portals when used
>   in a Flatpak sandbox, including GtkFileChooserNative, GtkPrintOperation,
>   gtk_show_uri.
>
> For more details and lists of fixed bugs, see the NEWS file that is
> included in the tarball, or see:
>
>  http://git.gnome.org/browse/gtk+/plain/NEWS?id=3.22.0
>
> For concerns about porting from older GTK+ releases, see the README file
> that is included in the tarball, or see:
>
>  http://git.gnome.org/browse/gtk+/plain/README.in?id=3.22.0

GTK+ 3.22.26 was released in November 2017.

[1] https://mail.gnome.org/archives/gnome-announce-list/2016-September/msg00044.html

gtk3.be0

@@ -1,6 +1,6 @@
 #!/usr/bin/env beesh
 
-# BEE_VERSION gtk3-3.16.6-0
+# BEE_VERSION gtk3-3.22.26-0
 
 SRCURL[0]="https://ftp.acc.umu.se/pub/gnome/sources/gtk+/${PKGVERSION[2]}/gtk+-${PKGVERSION}.tar.xz"