gnu: harfbuzz: Update to 1.4.6.

* gnu/packages/gtk.scm (harfbuzz): Update to 1.4.6.

gnu/packages/gtk.scm

@@ -170,7 +170,7 @@ affine transformation (scale, rotation, shear, etc.).")
 (define-public harfbuzz
   (package
    (name "harfbuzz")
-   (version "1.4.3")
+   (version "1.4.6")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://www.freedesktop.org/software/"
@@ -178,7 +178,7 @@ affine transformation (scale, rotation, shear, etc.).")
                                  version ".tar.bz2"))
              (sha256
               (base32
-               "08akv3qzwnf48xajb60dfcchkmfdjkpp65a0xd8s98w81901g343"))))
+               "14yj514yfy373np3gxk930a443j1zgnwg6mm0kdzzjr0rn0qp9r1"))))
    (build-system gnu-build-system)
    (outputs '("out"
               "bin")) ; 160K, only hb-view depend on cairo