Merge pull request #5756 from Abextm/varbit-thread-safe

Make sure varbit access happen on the client thread

runelite-mixins/src/main/java/net/runelite/mixins/VarbitMixin.java

@@ -72,6 +72,8 @@ public abstract class VarbitMixin implements RSClient
 	@Override
 	public int getVarbitValue(int[] varps, int varbitId)
 	{
+		assert client.isClientThread();
+
 		RSVarbit v = varbitCache.getIfPresent(varbitId);
 		if (v == null)
 		{