Feat/registry collector cli additions

[robert-cronin]

Description of the PR

Fixes #298
FYI: this branch is rebased onto #2185 so that will need to be merged before this one. I think this is the correct order cc @lumjjb

This PR only targets the second commit: 7f7e751

PR Checklist

• All commits have a Developer Certificate of Origin (DCO) -- they are generated using -s flag to git commit.
• All new changes are covered by tests
• If GraphQL schema is changed, make generate has been run
• If GraphQL schema is changed, GraphQL client updates/additions have been made
• If OpenAPI spec is changed, make generate has been run
• If ent schema is changed, make generate has been run
• If collectsub protobuf has been changed, make proto has been run
• All CI checks are passing (tests and formatting)
• All dependent PRs have already been merged

[lumjjb]

Couple minor changes requested, else LGTM!