fix: side branch references main's side branch

.gitlab-ci.yml

@@ -13,7 +13,15 @@ include:
       - ci-templates/default.yml
       - ci-templates/build.yml
     rules:
-      - if: '$CI_COMMIT_REF_NAME == "develop" || $CI_COMMIT_REF_PROTECTED'
+      - if: '$CI_COMMIT_REF_NAME == "develop"'
+
+  - project: osl/code/org.etsi.osl.main
+    ref: $CI_COMMIT_REF_NAME
+    file: 
+      - ci-templates/default.yml
+      - ci-templates/build.yml
+    rules:
+      - if: '$CI_COMMIT_REF_PROTECTED && $CI_COMMIT_REF_NAME != "main" && $CI_COMMIT_REF_NAME != "develop"'
 
   - project: osl/code/org.etsi.osl.main
     ref: develop