Gem::Version#bump

# File tmp/rubies/ruby-4.1.0-preview1/lib/rubygems/version.rb, line 253
def bump
  @@bump[self] ||= begin
                     segments = self.segments
                     segments.pop while segments.any? {|s| String === s }
                     segments.pop if segments.size > 1

                     segments[-1] = segments[-1].succ
                     self.class.new segments.join(".")
                   end
end