Fix Tidal master quality (#571)

Author: pinnick

streamrip/client/downloadable.py

@@ -200,7 +200,7 @@ def __init__(
     ):
         self.session = session
         codec = codec.lower()
-        if codec == "flac":
+        if codec in ("flac", "mqa"):
             self.extension = "flac"
         else:
             self.extension = "m4a"