[FIX] Bug fix on job extend

.gitlab-ci.yml

@@ -139,7 +139,7 @@ integrate-yocto:kirkstone:
     MANIFEST_BRANCH: kirkstone
 
 integrate-yocto:custom-1:
-  extends: .integrate-yocto
+  extends: .integrate-custom-1
   variables:
     MANIFEST_BRANCH: ${CUSTOM_1_BRANCH}