perfect: Change exception type to std::out_of_range in PerfectPlayer:…

…:eval

In the PerfectPlayer::eval method, the exception thrown when a key is not found in
the 'secs' map has been changed from std::runtime_error to std::out_of_range. This
aligns with the handling of similar exceptions elsewhere in the code, providing
consistency and clearer error messaging about missing database files.

Reference: ggevay/malom#3 (comment)
Change-Id: Ic860087ebf2d7e714b58f0c2ad78c05250434152

src/perfect/perfect_player.cpp

@@ -546,7 +546,7 @@ Wrappers::gui_eval_elem2 PerfectPlayer::eval(GameState s)
 
         auto it = secs.find(Id);
         if (it == secs.end()) {
-            throw std::runtime_error("Key not found in map");
+            throw std::out_of_range("Database file for the key not found");
         }
 
         Wrappers::WSector &sec = it->second;