Add additional viewers for PGI

[haydentherapper]

Summary

Release Note

Documentation

[haydentherapper]

cc @bobcallaway

[cpanato]

the ci failure will be fixed in this pr #380

[cpanato]

@haydentherapper please rebase

[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/1c51f9a3-c009-407b-a9d7-83845435bbb6

@ Previewing update....
pulumi:pulumi:Stack: (same)
[urn=urn:pulumi:github-prod::sigstore-github-sync::pulumi:pulumi:Stack::sigstore-github-sync-github-prod]
@ Previewing update....
+ github:index/repositoryCollaborator:RepositoryCollaborator: (create)
    [urn=urn:pulumi:github-prod::sigstore-github-sync::github:index/repositoryCollaborator:RepositoryCollaborator::public-good-instance-jku]
    permission               : "triage"
    permissionDiffSuppression: false
    repository               : "public-good-instance"
    username                 : "jku"
+ github:index/repositoryCollaborator:RepositoryCollaborator: (create)
    [urn=urn:pulumi:github-prod::sigstore-github-sync::github:index/repositoryCollaborator:RepositoryCollaborator::public-good-instance-loosebazooka]
    permission               : "triage"
    permissionDiffSuppression: false
    repository               : "public-good-instance"
    username                 : "loosebazooka"
Resources:
+ 2 to create
573 unchanged