Replace include guards with pragma once

src/Library/internal-include/BootLoader/boot_loader.hpp

@@ -1,5 +1,4 @@
-#ifndef BOOT_LOADER_HPP
-#define BOOT_LOADER_HPP
+#pragma once
 #include "color_debug.hpp"
 #include <PSX/jabyengine.hpp>
 
@@ -25,5 +24,4 @@ namespace JabyEngine {
     }
 
      void __no_return run();
-}
-#endif //!BOOT_LOADER_HPP
+}