Get automatic copilot code reviews happening in our orgs

## Done Criteria
When a PR targets the default branch, I want a copilot code review to happen automatically, regardless of who the author was.
I would like this to be the case for FOC-related repos in FilOzone and filecoin-project

## Why Important
This is a good objective way for the author to get feedback before taking human reviewer time.
In addition, I think most people aren't using the copilot agent for their development, this copiliot serves as a different set of eyes.

## Notes
We have various rulesets about this already in place. I think this used to work, but something has changed on the GitHub side. Now copilot reviews only happen for those who have a copilot plan.

Example ruleset that is configured properly: https://github.com/FilOzone/dealbot/settings/rules/10467327
- But see this:

It also looks like open source developers can no longer apply for a free individual plan: https://github.blog/news-insights/company-news/changes-to-github-copilot-individual-plans/