Prevent homebrew from upgrading QEMU when installing Lima

[jandubois]

Trying to fix:

==> Installing dependencies for lima: qemu
(https://github.com/lima-vm/socket_vmnet/actions/runs/12017122983/job/33498771215#step:11:15)
Error: qemu is already installed from lima/tap!

Not sure why this only happened on master, but hopefully this will dissuade brew from installing a newer version of qemu.

[jandubois]

This doesn't seem to work. It also looks like brew is going to install an old version of Lima on macos-15 here:

==> Downloading https://ghcr.io/v2/homebrew/core/lima/manifests/0.23.2
==> Fetching dependencies for lima: qemu
==> Downloading https://ghcr.io/v2/homebrew/core/qemu/manifests/9.1.1

I have no time right now to further look into this; I would suggest to revert #63, which seems to have surfaced this issue.

@nirs If you want to try, you could remove installing the older qemu 9.0.1 version and see if the latest QEMU is still a problem. Or revert to building Lima from source (which would also solve the issue that brew seems to want to install 0.23.2 instead of 1.0.1).

Otherwise let me know if I should create a PR to revert #63!

[nirs]

Installing lima from source is too slow, this make it much harder to work on the CI. I already tested instaling lima 1.0.1 from brew on macos-15 and it worked.

I guess we did not test #63 properly. Lets revert it and do this change in smaller steps.

[nirs]

Actually when I tested on macos-15, lima was still building from source. The change to install from brew was tested on only macos-13-large and macos-14-large.

[nirs]

Turns that #63 was cancelled. We had to rerun it to see the issue.

[jandubois]

ets revert it and do this change in smaller steps.

I've filed #88 to revert it.