Update player accessed on wrong thread URL

PiperOrigin-RevId: 247418601

library/core/src/main/java/com/google/android/exoplayer2/SimpleExoPlayer.java

@@ -1232,7 +1232,7 @@ public class SimpleExoPlayer extends BasePlayer
       Log.w(
           TAG,
           "Player is accessed on the wrong thread. See "
-              + "https://exoplayer.dev/faqs.html#"
+              + "https://exoplayer.dev/troubleshooting.html#"
               + "what-do-player-is-accessed-on-the-wrong-thread-warnings-mean",
           hasNotifiedFullWrongThreadWarning ? null : new IllegalStateException());
       hasNotifiedFullWrongThreadWarning = true;