fix: 调整两个角色的技能平衡参数

调整Lynx的冲刺倍率从2改为1.5，下调牧羊犬的技能冷却时间从1000ms到500ms，并更新其技能描述文本

components/CharacterCards/MuyangDog.tscn

@@ -20,10 +20,9 @@ displayName = "牧羊犬"
 slogan = "恪守使命不离不弃"
 avatar = ExtResource("2_fi2nw")
 description = "造成伤害时少量吸血，
-每秒最多触发一次。"
+每0.5秒最多触发一次。"
 fields = Array[int]([0, 8, 3])
 fieldValues = Array[float]([35.0, 0.2, -0.5])
-clickToRebuild = true
 
 [node name="avatarTexture" parent="wrapper" parent_id_path=PackedInt32Array(2023039659) index="0" unique_id=1334645594]
 texture = ExtResource("2_fi2nw")
@@ -36,4 +35,4 @@ text = "“恪守使命不离不弃”"
 
 [node name="descriptionLabel" parent="wrapper/infoContainer" parent_id_path=PackedInt32Array(143242635) index="1" unique_id=808054282]
 text = "造成伤害时少量吸血，
-每秒最多触发一次。"
+每0.5秒最多触发一次。"

scripts/Contents/Characters/Lynx.gd

@@ -2,4 +2,4 @@ extends PlayerBase
 
 func register():
 	super.register()
-	sprintMultiplier += 2
+	sprintMultiplier += 1.5

scripts/Contents/Characters/MuyangDog.gd

@@ -1,6 +1,6 @@
 extends PlayerBase
 
-var healCounter = CooldownTimer.new(1000)
+var healCounter = CooldownTimer.new(500)
 
 func register():
 	super.register()