Change musicbrainzngs logging level to WARNING

The default log level is INFO.
Needed to silence harmless messages like: '<ws2:release-group>, uncaught attribute type-id'.

Signed-off-by: JoeLametta <JoeLametta@users.noreply.github.com>

whipper/common/mbngs.py

@@ -268,6 +268,7 @@ def musicbrainz(discid, country=None, record=False):
     logger.debug('looking up results for discid %r', discid)
     import musicbrainzngs
 
+    logging.getLogger("musicbrainzngs").setLevel(logging.WARNING)
     musicbrainzngs.set_useragent("whipper", whipper.__version__,
                                  "https://github.com/whipper-team/whipper")
     ret = []