[arch-proaudio] Request for testing rubberband 2.0.0

Hi all, I have added rubberband 2.0.0 to [community-testing]. Upstream declares this version as "binary compatible" down to 1.7, but not "output-compatible" in realtime mode [1]. Please test and report any issues. The new version will otherwise be merged after seven days. Best, David [1] https://hg.sr.ht/~breakfastquay/rubberband/browse/CHANGELOG?rev=v2.0.0 -- https://sleepmap.de