Publish routes in packaged gem

[camertron]

What are you trying to accomplish?

In a recent PR, controllers and views serving Lookbook previews were moved from the Rails app in the demo/ directory into the main PVC Rails engine. This appeared to work well when depending on a local copy of PVC, but the OpenProject team ran into an issue when attempting to use the published gem. It appears gem releases do not contain the contents of the config/ directory, and therefore cannot access the routes defined in config/routes.rb. Correspondingly, this PR adds config/ to the list of files included in gem releases.

Integration

No changes necessary in production, this change is dev/test-only.

Risk Assessment

• Low risk the change is small, highly observable, and easily rolled back.
• Medium risk changes that are isolated, reduced in scope or could impact few users. The change will not impact library availability.
• High risk changes are those that could impact customers and SLOs, low or no test coverage, low observability, or slow to rollback.

Accessibility

• No new axe scan violation - This change does not introduce any new axe scan violations.

[changeset-bot]

🦋 Changeset detected

Latest commit: eeea551

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@primer/view-components	Patch

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