Add member to public-good-instance

[haydentherapper]

Member is preparing for oncall rotation, so first will be given triage to work on private issues.

Also organized users.yaml

Summary

Release Note

Documentation

[haydentherapper]

cc @lukehinds @trevrosen @priyawadhwa

[github-actions]

🍹 preview on sigstore-github-sync/sigstore/github-prod

Pulumi report

Previewing update (sigstore/github-prod)

View Live: https://app.pulumi.com/sigstore/sigstore-github-sync/github-prod/previews/4c94c91d-c5f1-4bee-8aa9-7bfd3af81001

@ Previewing update....
pulumi:pulumi:Stack: (same)
[urn=urn:pulumi:github-prod::sigstore-github-sync::pulumi:pulumi:Stack::sigstore-github-sync-github-prod]
+ github:index/membership:Membership: (create) 🔒
    [urn=urn:pulumi:github-prod::sigstore-github-sync::github:index/membership:Membership::yrobla]
    role      : "member"
    username  : "yrobla"
@ Previewing update....
+ github:index/repositoryCollaborator:RepositoryCollaborator: (create)
    [urn=urn:pulumi:github-prod::sigstore-github-sync::github:index/repositoryCollaborator:RepositoryCollaborator::public-good-instance-yrobla]
    permission               : "triage"
    permissionDiffSuppression: false
    repository               : "public-good-instance"
    username                 : "yrobla"
Resources:
+ 2 to create
524 unchanged

[lukehinds]

Thanks @haydentherapper!