Unhardcode weapon ammo consumption

fix gh actions

OpenRA.Mods.Cnc/Activities/LayMines.cs

@@ -147,7 +147,7 @@ namespace OpenRA.Mods.Cnc.Activities
 				if (pool == null)
 					return;
 
-				pool.TakeAmmo(self, 1);
+				pool.TakeAmmo(self, minelayer.Info.AmmoUsage);
 			}
 
 			self.World.AddFrameEndTask(w => w.CreateActor(minelayer.Info.Mine, new TypeDictionary

OpenRA.Mods.Cnc/Traits/Minelayer.cs

@@ -62,6 +62,9 @@ namespace OpenRA.Mods.Cnc.Traits
 		[Desc("Cursor to display when able to lay a mine.")]
 		public readonly string AbilityCursor = "ability";
 
+		[Desc("Ammo the minelayer consumes per mine.")]
+		public readonly int AmmoUsage = 1;
+
 		public override object Create(ActorInitializer init) { return new Minelayer(init.Self, this); }
 	}