remove ranges header

src/state_explorer.cpp

@@ -4,7 +4,6 @@
 #include <iostream>
 #include <memory>
 #include <numeric>
-#include <ranges>
 
 #include <readline/readline.h>
 #include <readline/history.h>
@@ -477,4 +476,4 @@ namespace Hanabi
       std::cout << "Unrecognized command. Type 'help' for a list of available commands." << std::endl;
     }
   }
-}
+}