Tests are not being run on PRs

[ararslan]

I'm not actually sure how CI was set up initially but tests are no longer being run. This repo is also still using bors, which is no longer a thing. It's possible that reinstating CI could be as simple as swapping bors for GitHub Actions but I'm unsure and haven't looked into it at all.

EDIT: Okay I looked into it briefly, the tests are running (and passing) on cron, I think we just need to enable them to run on PRs in the GHA config?

[ericphanson]

xref JuliaCloud/AWS.jl#630, where it was discussed how to use the "require approval for new contributors" setting to gate access to real-s3 which I think we'd want to do here

[mattBrzezinski]

xref JuliaCloud/AWS.jl#630, where it was discussed how to use the "require approval for new contributors" setting to gate access to real-s3 which I think we'd want to do here

I've dropped bors being a required check before merging, we already had it but confirming that 1st time contributors require approval for CI runs.