swift-actions/setup-swift@v3 crashes on macos-14 with swiftly error

[asielcabrera]

Description

The action swift-actions/setup-swift@v3 crashes on macos-14 runners when trying to install Swift 6.3.0 via swiftly.

Error

freed pointer was not the last allocation::error::Unexpected error, unable to continue.
Please report at https://github.com/swift-actions/setup-swift/issues

The swiftly tool crashes during installation, making it impossible to use Swift 6.3.0 on macos-14 runners.

Impact

We had to switch to macos-15 runners which have Swift 6 pre-installed and work correctly with swift-actions/setup-swift@v3.

Resolution needed

• Upstream fix in swift-actions/setup-swift
• Or use a newer version of the action that handles the macos-14 environment correctly