MacOS 15 support fixes

[ramereth]

This adds support for building on MacOS 15. This requires chef/omnibus-software#1977.

• MacOS 15 requires newer zlib due to compilation issues
• MacOS 15 on arm64 requires newer libffi

Description

Related Issue

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Chore (non-breaking change that does not add functionality or fix an issue)

Checklist:

• I have read the CONTRIBUTING document.
• I have run the pre-merge tests locally and they pass.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• If Gemfile.lock has changed, I have used --conservative to do it and included the full output in the Description above.
• All new and existing tests passed.
• All commits have been signed-off for the Developer Certificate of Origin.

[poorndm]

We currently do not support macOS 15 in our platform, as testing has been limited to macOS 13 and 14 so far. Planning is required to enable macOS 15 arm support in Buildkite. To approve this PR, it is essential to test the chef-foundation build
with dependency changes ( zlib and libffi ) on an ad-hoc pipeline using macOS 15 ARM .