xfconf: Update version from 4.13.5 to 4.13.7

> Release notes for 4.13.7
> ========================
> [Please note that this is a development release.]
>
> - Bump glib version
> - Bug #15122: xfconf: disable gsettings backend by default
> - Fix compiler error -Wcast-function-type (GCC 8)
> - Fix this use of "defined" may not be portable
> - Update .gitignore
> - Fix warnings reported by GCC 8 (Bug #15112)
> - Added gdbus binding to gitignore, add post release git tag
> - Translation updates: Basque, Belarusian, Bulgarian, Catalan, Czech,
> Danish, English (Australia), Icelandic, Italian, Lithuanian, Portuguese
> (Brazilian), Romanian, Slovak, Swedish

xfconf.be0

@@ -1,6 +1,6 @@
 #!/usr/bin/env beesh
 
-# BEE_VERSION xfconf-4.13.5-0
+# BEE_VERSION xfconf-4.13.7-0
 
 SRCURL[0]="http://archive.xfce.org/src/xfce/xfconf/${PKGVERSION[2]}/xfconf-${PKGVERSION}.tar.bz2"