Fix pipeline 1102281 due to upstream ci yml changes

What does this MR do and why?

Fix failed pipeline : https://jihulab.com/gitlab-cn/gitlab/-/pipelines/1102281

error log:

Unable to create pipeline
rspec:coverage job: undefined dependency: rspec migration pg13 predictive

Changes from: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/113410

WHY

This generates the rspec * predictive and rspec-ee * predictive jobs dynamically in child pipelines, so that the parallelization can be set accordingly.

Screenshots or screen recordings

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

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