Update Lavaplayer version

Update Lavaplayer to `1.3.49` to fix issues with Youtube tracks.

Author: ThatOneGamer999

build.gradle

@@ -52,7 +52,7 @@ subprojects {
 
     ext {
         //@formatter:off
-        lavaplayerVersion               = '1.3.38'
+        lavaplayerVersion               = '1.3.49'
         lavaplayerIpRotatorVersion      = '0.1.7'
         magmaVersion                    = '0.12.5'
         jdaNasVersion                   = '1.1.0'