build: Add xkbcommon 0.8.4

Co-authored-by: fanquake <fanquake@gmail.com>

contrib/guix/manifest.scm

@@ -3,6 +3,7 @@
              (gnu packages autotools)
              (gnu packages base)
              (gnu packages bash)
+             (gnu packages bison)
              (gnu packages cdrom)
              (gnu packages check)
              (gnu packages cmake)
@@ -219,6 +220,7 @@ chain for " target " development."))
         autoconf
         automake
         pkg-config
+        bison
         ;; Scripting
         perl
         python-3