feat: add cancel jobs endpoint in rule promotions (#43)

BREAKING CHANGE: add cancel jobs endpoint in rule promotions

Author: ellanan

src/endpoints/rule-promotions.js

@@ -57,6 +57,10 @@ class RulePromotionsEndpoint extends CRUDExtend {
     )
   }
 
+  CancelJob(promotionId, jobId) {
+    return this.request.send(`${this.endpoint}/${promotionId}/jobs/${jobId}/cancel`, 'POST')
+  }
+
   AddCodes(promotionId, codes) {
     return this.request.send(`${this.endpoint}/${promotionId}/codes`, 'POST', {
       type: 'promotion_codes',

src/types/rule-promotions.ts

@@ -166,6 +166,8 @@ export interface RulePromotionsEndpoint
     body: RulePromotionCodesJob
   ): Promise<Resource<RulePromotionJob>>
 
+  CancelJob(promotionId: string, jobId: string): Promise<{}>
+
   DeleteCode(promotionId: string, codeId: string): Promise<{}>
 
   DeleteCodes(