Use @SuppressWarnings for checkstyle suppressions & warnings

It's better to use @SuppressWarnings instead of the suppressions file, so that the warning suppression is at the place where it acts.

app/src/main/java/org/schabi/newpipe/player/Player.java

@@ -682,6 +682,7 @@ public final class Player implements
     //////////////////////////////////////////////////////////////////////////*/
     //region Playback initialization via intent
 
+    @SuppressWarnings("MethodLength")
     public void handleIntent(@NonNull final Intent intent) {
         // fail fast if no play queue was provided
         final String queueCache = intent.getStringExtra(PLAY_QUEUE_KEY);

app/src/main/java/org/schabi/newpipe/player/playqueue/PlayQueueItem.java

@@ -52,6 +52,7 @@ public class PlayQueueItem implements Serializable {
                 item.getUploaderUrl(), item.getStreamType());
     }
 
+    @SuppressWarnings("ParameterNumber")
     private PlayQueueItem(@Nullable final String name, @Nullable final String url,
                           final int serviceId, final long duration,
                           @Nullable final String thumbnailUrl, @Nullable final String uploader,