[chore] update xray scan jobs with only condition (#5054)

* [chore] update xray scan jobs with only condition

* switch to rules from only/except

Author: jinja2

.gitlab-ci.yml

@@ -191,8 +191,10 @@ fossa:
   - echo "${ARTIFACTORY_BASE_URL}/${local_repo}/${target}" | tee xray_artifact_path
 
 .xray-scan-package:
-  only:
-    - main
+  rules:
+    - if: $CI_PIPELINE_SOURCE == "schedule"
+      when: never
+    - if: $CI_COMMIT_BRANCH == "main"
   extends: .binary-scan
   stage: xray-scan
   variables: