[ruby/ostruct] Bump up 0.6.0

https://github.com/ruby/ostruct/commit/0985296e72
2023-11-07 15:16:15 +09:00 · 2023-11-07 15:16:15 +09:00 · 01d86818ff
--- a/lib/ostruct.rb
+++ b/lib/ostruct.rb
@ -107,7 +107,7 @@
 # For all these reasons, consider not using OpenStruct at all.
 #
 class OpenStruct
-  VERSION = "0.5.5"
+  VERSION = "0.6.0"

  HAS_PERFORMANCE_WARNINGS = begin
    Warning[:performance]