Ruby 3.4 usage issues warning

[Nik08]

Version:

Found this issue with both 3.3.6 and 3.3.8 ( latest )

Environment:

Using this with InSpec and Ruby 3.4.1 on a mac operating system.

Scenario:

Found the issue while running the test suite of InSpec with the following command bundle exec rake test TEST="test/functional/inspec_exec_json_test.rb".
It throws continuous warnings when upgrading Ruby version on 3.4.1 with this gem.

Please ignore the minitest warning, and only look at the one getting from mixlib-shellout.

Steps to Reproduce:

Simply using this gem with Ruby 3.4 should throw this warning.

Expected Result:

To modify the gem as per the warning.

Actual Result:

A warning being thrown with warning: literal string will be frozen in the future.