`unwrap-useless-dropdowns` sometimes not working on Actions #3318

I think the page detection needs to be improved

It works here: https://github.com/sindresorhus/refined-github/runs/840621054?check_suite_focus=true

<img width="996" alt="Screen Shot 2020-07-06 at 10 20 00" src="https://user-images.githubusercontent.com/1402241/86571784-4a2f1d00-bf72-11ea-97eb-7881f280022c.png">

But not here: https://github.com/fregante/github-url-detection/pull/21/checks?check_run_id=840639973

<img width="1000" alt="Screen Shot 2020-07-06 at 10 20 07" src="https://user-images.githubusercontent.com/1402241/86571772-47342c80-bf72-11ea-94c1-eb28afcb6f89.png">