Stable version 0.4.6

This release is dedicated to Stardew Valley, for fixing the Harvest Moon
unplayable issue where Ann gives up on her inventions after marriage ;_;

ShellCheck.cabal

 Name:             ShellCheck
-Version:          0.4.5
+Version:          0.4.6
 Synopsis:         Shell script analysis tool
 License:          GPL-3
 License-file:     LICENSE