Github PAT Validation regex does not handle new PAT format

[thunderboltsid]

While trying out the EKS-A flux setup docs, I came across a bug. Non-classic Github PATs that allow fine-grained repo-scope tokens are rejected by the current validation scheme in EKS-A

github access token environment variable EKSA_GITHUB_TOKEN is invalid; must match format ^[A-Za-z0-9_]{40}$

This is happening due to the validation expecting the PAT to match against a specific regex which it doesn't.

Here's an example of a PAT that can fail:

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

[abhay-krishna]

Thanks for reporting the bug @thunderboltsid! We are working on a fix and this should be resolved in the next release.