Downgrade to qemu-8.2.1

Lima doesn't seem to work properly with the latest QEMU on GitHub runners.

This commit will build qemu 8.2.1 from source, which will take 10min or so.
It should be replaced by downloaded the bottle from ghcr.io.

Signed-off-by: Jan Dubois <jan.dubois@suse.com>

.github/workflows/test.yml

@@ -387,7 +387,13 @@ jobs:
       with:
         template: https://raw.githubusercontent.com/lima-vm/lima/${{ matrix.oldver }}/examples/ubuntu-lts.yaml
     - name: Install test dependencies
-      run: brew install qemu bash coreutils
+      run: |
+        brew install bash coreutils
+        brew uninstall --ignore-dependencies --force lima
+        # Install qemu 8.2.1. Unfortunately this mechanism builds from source.
+        brew tap-new lima/qemu
+        brew extract --version=8.2.1 qemu lima/qemu
+        brew install lima/qemu/qemu@8.2.1
     - name: Test
       uses: nick-invision/retry@v3
       with: