musicpd: update to 0.22.3.

ver 0.22.3 (2020/11/06)
* playlist
  - add option "as_directory", making CUE file expansion optional
* storage
  - curl: fix crash bug
* filter
  - fix garbage after "Audio format not supported by filter" message
  - ffmpeg: support planar output
  - ffmpeg: support sample formats other than 16 bit

ver 0.22.2 (2020/10/28)
* database
  - simple: purge songs and virtual directories for unavailable plugins
    on update
* input
  - qobuz/tidal: fix protocol errors due to newlines in error messages
  - smbclient: disable by default due to libsmbclient crash bug
* playlist
  - soundcloud: fix protocol errors due to newlines in error messages
* state_file: save on shutdown

(wiz)