Allow disabling gst-plugins-base
Otherwise you get the following error:
Subproject gst-plugins-base : skipped: feature base disabled
../src/1.22.5-786d6f5b49.clean/meson.build:163:4: ERROR: Subproject "subprojects/gst-plugins-base" disabled can't get_variable on it.
A full log can be found at /Users/leanderSchulten/git_projekte/vcpkg/buildtrees/gstreamer/arm64-osx-dbg/meson-logs/meson-log.txt