package/wireplumber: bump version to 0.4.8
Changelog:
https://gitlab.freedesktop.org/pipewire/wireplumber/-/blob/e14bb72dcc85e2130d0ea96768e5ae3b375a041e/NEWS.rst
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>