[FIX] Fix a warning in the hit test

tests/05_rays.cpp

@@ -421,8 +421,7 @@ SCENARIO("The hit, when all intersections have negative t", "[features/intersect
                         auto i = xs.hit();
                         THEN("i is nothing")
                         {
-#warning TODO
-                            // REQUIRE(i.has_value());
+                            REQUIRE(i.is_nothing());
                         }
                     }
                 }