Some distributions set --auto_features=enabled which messes with the
internal logic of the build system when features are used for other
purposes than pure dependency control. The only solution is to either
avoid the value auto or change the type of the option to non-feature.
This commit does the later by replacing -Dmedia-session, -Dwireplumber
and -Dsession-manager with the new -Dsession-managers array and
-Ddefault-session-manager combo options.
Fixes#1333Fixes#1336
FreeBSD ports tree does not have alsa-lib >=1.1.7 yet,
build the newer one locally in CI until a newer version
of alsa-lib lands to the FreeBSD ports tree.
