fix: update ROLE_MATCHING_RATE to 0.66

Author: yoution

config/default.js

@@ -177,7 +177,7 @@ module.exports = {
   DEFAULT_TIMELINE_TEMPLATE_ID: process.env.DEFAULT_TIMELINE_TEMPLATE_ID || '53a307ce-b4b3-4d6f-b9a1-3741a58f77e6',
   DEFAULT_TRACK_ID: process.env.DEFAULT_TRACK_ID || '9b6fc876-f4d9-4ccb-9dfd-419247628825',
   // the minimum matching rate when searching roles by skills
-  ROLE_MATCHING_RATE: process.env.ROLE_MATCHING_RATE || 0.70,
+  ROLE_MATCHING_RATE: process.env.ROLE_MATCHING_RATE || 0.66,
   // member groups representing Wipro or TopCoder employee
   INTERNAL_MEMBER_GROUPS: process.env.INTERNAL_MEMBER_GROUPS || ['20000000', '20000001', '20000003', '20000010', '20000015'],
   // Topcoder skills cache time in minutes