Log Message:
lang/ruby24-base: update to 2.4.7

2.4.7 (2019-08-28)

Ruby 2.4.7 has been released.

This release includes a security fix. Please check the topics below for
details.

* Multiple jQuery vulnerabilities in RDoc

Ruby 2.4 is now under the state of the security maintenance phase, until
the end of March of 2020. After that date, maintenance of Ruby 2.4 will be
ended. We recommend you start planning the migration to newer versions of
Ruby, such as 2.6 or 2.5.