Log Message:
libopenmpt: update to 0.6.2.

### libopenmpt 0.6.2 (2022-03-13)

 *  [**Sec**] Possible out-of-bounds write in malformed IT / XM / MPTM files
    using the internal LFO plugin. (r17076)
 *  [**Sec**] Possible out-of-bounds read when using Amiga BLEP interpolation
    with extremely high-pitched notes. (r17078, r17079)

 *  ISO-8859-1-related charsets from Amiga OS and RISC OS are now handled more
    accurately, thus avoiding some unwanted control characters.
 *  MO3: Pattern indices 254 / 255 were not treated as playable patterns even if
    the original file was a MOD / XM.
 *  Correctly apply ST3-style effect memory when seeking in S3M files.
 *  Command S (S3M / IT style) effect memory was not applied when seeking.
 *  Initial channel mute status was not reported correctly in \ 
`get_channel_mute_status`
    since libopenmpt 0.6.0.

 *  FLAC: Update to v1.3.4 (2022-02-21).
 *  pugixml: Update to v1.12.1 (2022-02-16).