pmb.qemu.run.install_depends: adjust to mesa pkgs
Adjust the mesa related packages installed for running in qemu, after the mesa APKBUILD in Alpine was changed. Install mesa-va-gallium instead of:
- mesa-dri-freedreno
- mesa-dri-swrast
- mesa-dri-virtio
- mesa-dri-vmwgfx
Fix error in pmbootstrap-qemu CI test: ERROR: Could not find dependency 'mesa-dri-freedreno' in any aports folder or APKINDEX.
Related: https://gitlab.alpinelinux.org/alpine/aports/commit/298e20d04fdbc33fc32a0388f645ca02e1fa3961
Important fix for master, merging after CI passes.