add a minimum Y level.

Signed-off-by: Sam Corbett <sam@corbettchocolates.com>

src/main/java/baritone/process/MineProcess.java

@@ -417,6 +417,8 @@ public final class MineProcess extends BaritoneProcessHelper implements IMinePro
                     }
                 })
 
+                .filter(pos -> pos.getY() > Baritone.settings().minYLevelWhileMining.value)
+
                 .filter(pos -> !blacklist.contains(pos))
 
                 .sorted(Comparator.comparingDouble(ctx.getBaritone().getPlayerContext().player()::getDistanceSq))