Update regex for SpotifyTokenTracker Secret (#282)

Author: infnibor

main/src/main/java/com/github/topi314/lavasrc/spotify/SpotifyTokenTracker.java

@@ -33,7 +33,7 @@
 public class SpotifyTokenTracker {
 	private static final Logger log = LoggerFactory.getLogger(SpotifyTokenTracker.class);
 
-	private static final Pattern SECRET_PATTERN = Pattern.compile("\\(\\[(\\d+(?:,\\d+)+)]\\)");
+	private static final Pattern SECRET_PATTERN = Pattern.compile("\"secret\":\\[(\\d+(?:,\\d+)+)]");
 
 	private final SpotifySourceManager sourceManager;