[PROMOTE TO BLOCKING] Create Group file templates creates file

What does this MR do?

Promotes the test Create Group file templates creates file via custom .gitlab-ci.yml file template to the blocking bucket

This test was identified in the reliable e2e test report: #443270 (closed)

(This MR was automatically generated by gitlab_quality-test_tooling at 2024-02-26 02:06:00 UTC)