spek: revision bump (wxwidgets 3.3.1)

Author: carlocab

Formula/s/spek.rb

@@ -4,7 +4,7 @@ class Spek < Formula
   url "https://github.com/alexkay/spek/releases/download/v0.8.5/spek-0.8.5.tar.xz"
   sha256 "1bccf85a14a01af8f2f30476cbad004e8bf6031f500e562bbe5bbd1e5eb16c59"
   license "GPL-3.0-or-later"
-  revision 3
+  revision 4
 
   no_autobump! because: :requires_manual_review