lang/ruby33: Fix CPE_STR

RUBY_RELVERSION and RUBY_PATCHLEVEL have been removed in a1a91e4c937a8664ae4b4bedca114e40c46e3d14.
This commit fixes the CPE_STR.

For example:

• Before: cpe:2.3:a:ruby-lang:ruby::p::::freebsd14:x64
• After: cpe:2.3:a:ruby-lang:ruby:3.3.7:p0::::freebsd14:x64