Update .gitlab-ci.yml

Author: mkoszutowski

.gitlab-ci.yml

@@ -25,7 +25,7 @@ deploy-to-prod:
   script:
     - apk add --no-cache curl
     - >
-      curl -H "Content-Type: application/json" -X POST -d "{\"code\":\"test\", \"apiContainerVersion\":\"\${CI_COMMIT_SHA:0:8}\"}" http://10.29.1.1:4000/instances
+      curl -H "Content-Type: application/json" -X POST -d "{\"code\":\"test\", \"apiContainerVersion\":\"${CI_COMMIT_SHA:0:8}\"}" http://10.29.1.1:4000/instances
   environment:
     name: staging
     url: https://test.storefrontcloud.io/