fix common ref

Author: millotp

specs/abtesting/paths/scheduleABTest.yml

@@ -39,11 +39,11 @@ post:
       description: OK
       headers:
         x-ratelimit-limit:
-          $ref: '../../analytics/common/parameters.yml#/x-ratelimit-limit'
+          $ref: '../../common/responses/rateLimit.yml#/x-ratelimit-limit'
         x-ratelimit-remaining:
-          $ref: '../../analytics/common/parameters.yml#/x-ratelimit-remaining'
+          $ref: '../../common/responses/rateLimit.yml#/x-ratelimit-remaining'
         x-ratelimit-reset:
-          $ref: '../../analytics/common/parameters.yml#/x-ratelimit-reset'
+          $ref: '../../common/responses/rateLimit.yml#/x-ratelimit-reset'
       content:
         application/json:
           schema: