Remove needs from license_scanning job

Don't set needs to an empty array in the job
definition of license_scanning.

See https://gitlab.com/gitlab-org/gitlab/-/issues/287697

ee/changelogs/unreleased/287697-remove-needs-from-license-scanning-job.yml

+---
+title: Start license_scanning job within its stage, and not when pipeline starts
+merge_request: 54234
+author:
+type: changed

lib/gitlab/ci/templates/Security/License-Scanning.gitlab-ci.yml

@@ -21,7 +21,6 @@ license_scanning:
     LM_REPORT_VERSION: '2.1'
     SETUP_CMD: $LICENSE_MANAGEMENT_SETUP_CMD
   allow_failure: true
-  needs: []
   script:
     - /run.sh analyze .
   artifacts: