Renders pagination again for pipelines table

What does this MR do?

Fixes:

• function being called to parse pagination was not the correct one
• assumption of undefined parameter

There are no tests for pagination in pipelines yet, I have a different MR with them (which was why I noticed this was broken) - https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/9268

Are there points in the code the reviewer needs to double check?

No.

Does this MR meet the acceptance criteria?

• Changelog entry added
• Documentation created/updated
• API support added
• Tests
  • Added for this feature/bug
  • All builds are passing
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if it does - rebase it please)
• Squashed related commits together

What are the relevant issue numbers?

Closes #28299 (closed)