This uses a script to add the new `stargazers_count` and `updated_at` to
the scenario files. This is done by using the GitHub API to get the
information for each repo and then updating the scenario file.
The `updated_at` values are not completely representative since they are
the `updated_at` at time of running the script, rather than at the time
the variant analysis was run. However, this should not really matter in
practice. An alternative for scanned repositories might be getting the
creation time of the `database_commit_sha` commit.
This adds a linter for JSON scenario files which will validate the JSON
files in the scenarios directory against the TypeScript types. It will
convert the TypeScript types to JSON schema to simplify this process.
Unfortunately, this will not currently allow adding scenarios with
failing requests since the types do not allow this. Rather than removing
this validation, we should fix the types. This can be done in a follow-up
PR.
