fix(Weapons/Pipe): 调整攻击力和充能值的增长系数

将攻击力增长系数从2降低至1，充能值增长系数从0.02降低至0.005，以平衡武器性能

scripts/Contents/Weapons/Pipe.gd

@@ -2,8 +2,8 @@
 extends Weapon
 
 func update(to: int, origin: Dictionary, _entity: EntityBase):
-	origin["atk"] += 2 * to * soulLevel
-	origin["charge"] += 0.02 * to * soulLevel
+	origin["atk"] += 1 * to * soulLevel
+	origin["charge"] += 0.005 * to * soulLevel
 	return origin
 func attack(entity: EntityBase):
 	var weaponPos = entity.findWeaponAnchor("normal")