Link checker issue in ARIA APG repository

Daniel,

Could you verify the link checker for the ARIA Authoring Practices is working correctly, in my pull request it seems to be appending a colon to many URLs making them invalid.

Link to errors in pull request #3216:

https://github.com/w3c/aria-practices/actions/runs/26537810795/job/78171239430?pr=3216
updated landmark design pattern · w3c/aria-practices@f5d4922
github.com

Similar problem seems to be a part of pull request #3445:
https://github.com/w3c/aria-practices/pull/3445
Experimental Tabs with Actions Example: Clarify keyboard documentation for Tab key by mcking65 · Pull Request #3445 · w3c/aria-practices
github.com

Thank you for your help,
Jon