Fixes removal of "paused" parameter in URL

What does this MR do and why?

This change fixes an issue in the runners list that lead to the "Paused" attribute being "stuck" in the URL when it removed from the filters.

Now when the user removes the filter, the URL is updated accordingly.

Changelog: fixed

Screenshots or screen recordings

Before

After

How to set up and validate locally

1. Visit the Admin -> Runners page
2. Filter by Paused, can be Paused:Yes or Paused:No
3. Unselect the filter
4. Confirm the URL is updated

MR acceptance checklist

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