Correct CI target

 + Move main tests to version 4.03 of ocaml

.gitlab-ci.yml

@@ -28,7 +28,7 @@ ocaml_404_flambda:
 ocaml_402:
   before_script:
     - sudo apk update && sudo apk add m4
-  stage: test
+  stage: other_version
   image: ocaml/opam:alpine_ocaml-4.02.3
   script: "./gitlab-ci.sh"
   allow_failure: true
@@ -37,7 +37,7 @@ ocaml_402:
 ocaml_403:
   before_script:
     - sudo apk update && sudo apk add m4
-  stage: other_version
+  stage: test
   image: ocaml/opam:alpine_ocaml-4.03.0
   script: "./gitlab-ci.sh"
   allow_failure: false