[ruby/racc] Bump version to 1.5.2

https://github.com/ruby/racc/commit/ce0d7b9cde
2020-12-26 14:27:14 +09:00 · 2020-12-26 14:27:14 +09:00 · bb04856bca
--- a/lib/racc/info.rb
+++ b/lib/racc/info.rb
@ -11,7 +11,7 @@
 #++

 module Racc
-  VERSION   = '1.5.1'
+  VERSION   = '1.5.2'
  Version = VERSION
  Copyright = 'Copyright (c) 1999-2006 Minero Aoki'
 end