style: 도보 색상 변경

Author: DoTheBestMayB

presentation/src/main/res/values/colors.xml

@@ -7,7 +7,7 @@
     <color name="teal_700">#FF018786</color>
     <color name="black">#FF000000</color>
     <color name="white">#FFFFFFFF</color>
-    <color name="grey_for_route_walk">#E2E7EE</color>
+    <color name="grey_for_route_walk">#C0C5CA</color>
 
     <color name="light_grey">#D3CCCC</color>
     <color name="gray_d9">#D9D9D9</color>