CI doesn't function for forks

[oflatt]

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• I have read the guide for submitting bug reports.
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Bug Category

cedar-example-use-cases

Describe the bug

Currently, the CI for cedar-examples fails for forks.
See this example run: https://github.com/cedar-policy/cedar-examples/actions/runs/9371870708/job/25802115924?pr=142
AFAICT, this is because it tries to fetch from the main repo instead of the fork.
This is blocking two of my branches (though we can also just give me permissions for this repo).

Expected behavior

I would expect CI to succeed for branches on forks.

Reproduction steps

1. Fork this repository.
2. Push a branch.
3. Ci fails

Code Snippet

No response

Log output

No response

Additional configuration

No response

Operating System

No response

Additional information and screenshots

No response

[john-h-kastner-aws]

See #90. We had some other issue with builds from forks previously.

Perhaps that PR only fixed builds coming from cedar-policy/cedar?

[andrewmwells-amazon]

This seems to be working for forks on my personal GH account:
#146
#147

[andrewmwells-amazon]

Hopefully fixed with #149

[andrewmwells-amazon]

#149