tentative fix for getARGV on Windows · FreeFem/FreeFem-sources@b15121f

autoconf 2.72 is already installed and up-to-date. To reinstall 2.72, run: brew reinstall autoconf

m4 1.4.20 is already installed and up-to-date. To reinstall 1.4.20, run: brew reinstall m4

The macOS-13 based runner images are being deprecated, consider switching to macOS-15 (macos-15-intel) or macOS 15 arm64 (macos-latest) instead. For more details see https://github.com/actions/runner-images/issues/13046