Valide la 4.0.2 de ci-config.

.gitlab-ci.yml

 include:
   # cf. https://gitlab.irstea.fr/pole-is/tools/ci-config
   - project: pole-is/tools/ci-config
-    ref: "4.x"
+    ref: "4.0.2"
     file: /php/multiversions.yml
   - project: pole-is/tools/ci-config
-    ref: "4.0.1"
+    ref: "4.0.2"
     file: /php/packagist.yml