gnu: sbsigntools: Update to 0.9.3.

* gnu/packages/efi.scm (sbsigntools): Update to 0.9.3.

gnu/packages/efi.scm

@@ -1,7 +1,7 @@
 ;;; GNU Guix --- Functional package management for GNU
 ;;; Copyright © 2019 Danny Milosavljevic <dannym@scratchpost.org>
 ;;; Copyright © 2019 Efraim Flashner <efraim@flashner.co.il>
-;;; Copyright © 2019 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2019, 2020 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -64,7 +64,7 @@ environment presented by Intel's EFI.")
 (define-public sbsigntools
   (package
     (name "sbsigntools")
-    (version "0.9.2")
+    (version "0.9.3")
     (source
      (origin
        (method git-fetch)
@@ -75,8 +75,7 @@ environment presented by Intel's EFI.")
          (recursive? #t)))
        (file-name (git-file-name name version))
        (sha256
-        (base32
-         "116649ixr6gvw9fqiljfflxsv4293hgm73bmba5ilxrzn4kpbzvb"))))
+        (base32 "0gc3xmp73xl7z4nkwz4qy960rdflmx7k4ksgyblcnia9smvsir6y"))))
     (build-system gnu-build-system)
     (arguments
      `(#:phases