radv/ci: do not sync back the install folder
When a job is over, we download back all the files generated by the
job. This however includes the mesa install/ folder which is close
to 1G in size.
This commit adds the install/ folder to the exclusion list for the
volume mirroring.
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Signed-off-by: Martin Roukala (né Peres) <martin.roukala@mupuf.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19930>