CI: update images in build-ripunzip.yml

[redsun82]

In particular the macos-13 image is undergoing brownout, but we can update all images here while we're at it.

[Copilot]

Pull Request Overview

This PR updates the GitHub Actions workflow to use the newer macOS 15 runner for building ripunzip binaries.

• Updates the macOS runner from macos-13 to macos-15 in the build matrix

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[esbena]

LGTM. But it needs some version juggling:

thread 'main' (27164) panicked at /home/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/openssl-sys-0.9.109/build/main.rs:492:5:

This crate is only compatible with OpenSSL (version 1.0.1 through 1.1.1, or 3), or LibreSSL 2.5
through 4.1.x, but a different version of OpenSSL was found. > The build is now aborting
due to this version mismatch.

[redsun82]

LGTM. But it needs some version juggling:

thread 'main' (27164) panicked at /home/runner/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/openssl-sys-0.9.109/build/main.rs:492:5:
This crate is only compatible with OpenSSL (version 1.0.1 through 1.1.1, or 3), or LibreSSL 2.5
through 4.1.x, but a different version of OpenSSL was found. > The build is now aborting
due to this version mismatch.

took me some time, but I understood the problem was the pull request trigger ignoring the input defaults, so both ripunzip and openssl were being built from main (and the latter is unsupported by the opensll-sys crate)

[esbena]

Sigh.
(There should be a codeql query for that, or some ergonomic TWF workaround.)