Test strike timeout

rust/sea_battle_backend/src/data/game_rules.rs

@@ -53,6 +53,11 @@ impl GameRules {
         self
     }
 
+    pub fn with_strike_timeout(mut self, timeout: u64) -> Self {
+        self.strike_timeout = Some(timeout);
+        self
+    }
+
     /// Set the list of boats for this configuration
     pub fn set_boats_list(&mut self, boats: &[usize]) {
         self.boats_str = boats