module RakeCompilerDock

def cross_rubies


# }
# "2.4" => "2.4.10",
# "2.5" => "2.5.9",
# "2.6" => "2.6.10",
# "2.7" => "2.7.8",
# "3.0" => "3.0.7",
# "3.1" => "3.1.6",
# "3.2" => "3.2.6",
# "3.3" => "3.3.5",
# "3.4" => "3.4.1",
# => {
RakeCompilerDock.cross_rubies

For example:

Returns a Hash corresponding_patch_version>

a custom `RUBY_CC_VERSION` string that is valid.
Retrieve the cross-rubies that are available in the docker image. This can be used to construct 
def cross_rubies
  {
    "3.4" => "3.4.1",
    "3.3" => "3.3.7",
    "3.2" => "3.2.6",
    "3.1" => "3.1.6",
    "3.0" => "3.0.7",
    "2.7" => "2.7.8",
    "2.6" => "2.6.10",
    "2.5" => "2.5.9",
    "2.4" => "2.4.10",
  }
end