mympd: Update to version 22.0.4

mympd: Update to version 22.0.4

- Update from version 21.0.1 to 22.0.4
- Update of rootfile not required
- Changelog
    22.0.4
	- Upd: Restrict sticker names (forbid equal sign)
	- Fix: Really shuffle the playlist #1455
	- Fix: Relax search expression validation #1455
	- Fix: Alpine packaging
	- Fix: Detection of local playback features #1452
    22.0.3
	- Upd: Create cache und workdir in init script
	- Upd: Feature detection for local playback output selection #1452
    22.0.2
	- Fix: MYMPD_API_JUKEBOX_RESTART requires MPD connection #1448
    22.0.1
	- Fix: Respect backgroundImage setting #1446
	- Fix: Alpine packaging
    22.0.0
      Notes
	- This release enables certificate checking for outgoing https connections. The system CA cert store should be autodetected, open an issue if it fails.
	- The startup process of myMPD was reworked. myMPD no longer drops privileges, the included startup scripts are using now the init system to do this.
	- The default listening ports are now 8080 for HTTP and 8443 for HTTPS.
      API changes
	- MYMPD_API_SCRIPT_VERIFY_SIG: new
	- MYMPD_API_HOME_WIDGET_IFRAME_SAVE: new
	- MYMPD_API_HOME_WIDGET_SCRIPT_SAVE: new
	- MYMPD_API_HOME_WIDGET_SAVE: removed
      Scripting changes
	- Feat: `mympd.tblvalue_in_list()` - Checks a Lua table of tags against a comma separated list.
	- Upd: Executing external scripts is now disabled by default.
      Changelog
	- Feat: iFrames for home screen #1429
	- Feat: Feat: Add custom css and js #1428
	- Feat: Use system provided ca store for ssl certificate checking #1427
	- Feat: Sign and verify scripts from mympd-scripts repository #1426
	- Feat: Add trigger `mympd_playlistart`, `mympd_folderart`
	- Feat: Sort list of timers and triggers #1425
	- Feat: Allow changing output device with local playback #1434
	- Upd: Improve "Edit Script"-Layout
	- Upd: Bootstrap v5.3.7
	- Upd: Mongoose 7.18
	- Upd: libmympdclient 1.0.34 (libmpdclient 2.24.0)
	- Upd: Incbin
	- Upd: Replaced mjson with mongoose implementation
	- Fix: Improve MPD search expression validation #1435

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>