[3.0] libvlc: update tested hash to 34cd4a61

This includes the latest fixes for audio rendering, UPnP and AVI demuxing.

changed milestone to %3.6.0

added Maintenance VLC Core labels

added 2 commits

• ce38deee - 1 commit from branch videolan:3.0
• 9f63f3c3 - libvlc: update tested hash to 34cd4a61

Compare with previous version

enabled an automatic merge when the pipeline for 9f63f3c3 succeeds

merged