meson: Restore use of system wireplumber if already installed
this behaviour was lost in 05564309 when the default-session-manager option was removed
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GitLab will be down for maintenance Monday June 03, from approx 10am UTC for roughly 48 hours. This is for a major gitlab upgrade which requires a DB migration. See the tracker issue for more informations.
this behaviour was lost in 05564309 when the default-session-manager option was removed