Cap the commit page pipelines badge count at 1,000+

What does this MR do and why?

A commit can collect tens of thousands of pipelines, for example on a project that runs pipelines for other projects through schedules. On those commits the Pipelines tab badge on the commit page runs an unbounded COUNT(*) over every pipeline of the sha. That count is as expensive as the unbounded newest-pipeline lookup.

This MR switches the badge to limited_counter_with_delimiter, which wraps the count in LIMIT 1001 and shows 1,000+ above the cap.

This change was split out of !263784, which has the full query plans.

References

• Split from !263784

Screenshots or screen recordings

No visual change, except that a commit with more than 1,000 pipelines shows 1,000+ on its Pipelines tab badge.

How to set up and validate locally

1. Open a commit page for a commit with pipelines. The Pipelines tab badge shows the count.
2. Create more than 1,000 pipelines for one sha (FactoryBot.create_list(:ci_pipeline, 1001, project: project, sha: sha) in the console). The badge shows 1,000+.

MR acceptance checklist

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