wasm-pack test --headless --safari fails with driver failed to bind port during startup in GitHub action

[pemistahl]

🐛 Bug description

In a GitHub action on a macOS 14.7 runner in one of my libraries, I've been running wasm-pack test --headless --safari on every commit. It worked flawlessly for months but now the tests fail to execute at all. I get the error driver failed to bind port during startup. See this workflow run for reference. I've enabled the Safari driver with sudo safaridriver --enable before. On my local machine, it works fine. The headless tests in Chrome and Firefox also work fine. I'm not able to say whether this is a problem with wasm-pack, Safari or the GitHub runner.

🤔 Expected Behavior

The tests should run in headless Safari but they do not because the Safari driver fails to run the tests.

👟 Steps to reproduce

See this workflow run for reference.

🌍 Your environment

Include the relevant details of your environment.
wasm-pack version: 0.13.0
rustc version: 1.82.0