[WIP] Get unreviewed ruby GHSA advisories

[jasnow]

[WIP] Get unreviewed ruby GHSA advisories

• Strategy is to create a parallel script to query for unreviewed and ruby GHSA advisories.
• This first PR sets up the framework and used the same code as github_advisory_sync.rb.
• If this PR is merged, I will start changing the sync script to implement this URL as GraphQL

https://github.com/advisories?query=type%3Aunreviewed+ruby

The above query results in 142 advisoriies.

Longer term, we can combine the two sync scripts and/or refactor them as a separate effect.

The advantage of this strategy is we will not affect the current processes while we work this new work.

[jasnow]

Decide to work this item differently.