musicpd: update to 0.22.6.

ver 0.22.6 (2021/02/16)
* fix missing tags on songs in queue

ver 0.22.5 (2021/02/15)
* protocol
  - error for malformed ranges instead of ignoring silently
  - better error message for open-ended range with "move"
* database
  - simple: fix missing CUE sheet metadata in "addid" command
* tags
  - id: translate TPE3 to Conductor, not Performer
* archive
  - iso9660: another fix for unaligned reads
* output
  - httpd: error handling on Windows improved
  - pulse: fix deadlock with "always_on"
* Windows:
  - enable https:// support (via Schannel)
* Android
  - work around "Permission denied" on mpd.conf

(wiz)