Hotfix KillcheckerVisualizer bossbar progress

Signed-off-by: yoyosource <yoyosource@nidido.de>

BauSystem_Main/src/de/steamwar/bausystem/features/killchecker/KillcheckerVisualizer.java

@@ -293,7 +293,7 @@ public class KillcheckerVisualizer {
     private void updateBossBar(Player player) {
         BauSystemBossbar bossbar = bossBarService.get(player, region, "killchecker");
         bossbar.setTitle(BauSystem.MESSAGE.parse("KILLCHECKER_BOSSBAR", player, kills, ((int) (percent * 1000) / 10.0), cannonCount));
-        bossbar.setProgress(percent);
+        bossbar.setProgress(Math.min(Math.max(percent, 0), 1));
 
         if (percent >= 0.35) {
             bossbar.setColor(BarColor.RED);