macOS latest workflow broken, should be fixed Sept 8

[scpeters]

Environment

• OS Version: macos-latest github runner
• Source or binary build? all

Description

• Expected behavior: workflow should be able to install cmake
• Actual behavior:

Error: cmake is already installed from local/pinned!
Please `brew uninstall cmake` first."

Steps to reproduce

1. Run a macOS latest workflow

Output

Upstream bug report: actions/runner-images#12912

Fix planned in: actions/runner-images#12934

[scpeters]

• macOS 15 arm64 (20250908) Image Update actions/runner-images#12990
• macOS 13 (20250908) Image Update actions/runner-images#12989
• macOS 14 (20250908) Image Update actions/runner-images#12988
• macOS 15 (20250908) Image Update actions/runner-images#12986
• macOS 13 arm64 (20250908) Image Update actions/runner-images#12981

[erik-bershel]

New rollout to be tracked for macos-15-arm64 aka macos-15 aka macos-latest:

• macOS 15 arm64 (20250911) Image Update actions/runner-images#13006