Update GitHub Issue Notebooks due to GitHub issue query breaking change

Talked about here: https://github.blog/changelog/2025-03-06-github-issues-projects-api-support-for-issues-advanced-search-and-more/#mag-api-support-for-issues-advanced-search

You can see the difference in behavior if you open this GitHub issue query vs running this GitHub Issue Notebook cell.

GitHub Issue Notebooks loads results:

GitHub Issues does not:

From @RileyBroughten

You'll need to use OR between the repo filters, spaces are treated as AND operators with the introduction of boolean operators.

So we'll need to update all of our Notebooks before September 4 otherwise they will be broken...

But this is trickier because from within the notebooks I don't think we have a way to tack on this query parameter to adopt this before Sept 4th... so either we need a feature of GHIN that lets you provide this, or we just make the change after they're all broken.