fix: fix incorrect ServiceEndpoint

Closes #215

Author: theburningmonk

lib/deploy/events/apiGateway/deployment.js

@@ -27,9 +27,11 @@ module.exports = {
             [
               'https://',
               this.provider.getApiGatewayRestApiId(),
-              `.execute-api.${this.options.region}.`,
+              '.execute-api.',
+              { Ref: 'AWS::Region' },
+              '.',
               { Ref: 'AWS::URLSuffix' },
-              `/${this.options.stage}`,
+              `/${this.provider.getStage()}`,
             ],
           ],
         },