Use 4-2-stable activerecord branch if ruby >= 2.4
Use 4-2-stable activerecord branch if ruby >= 2.4

Use 4-2-stable git branch for ruby >= 2.4 and ~> 4.2.0 official release
for lower ruby versions.

rsim/ruby-plsql,rsim/ruby-plsql,yahonda/ruby-plsql,yahonda/ruby-plsql