What does this MR do and why?

Add ciCatalogBundledResources GraphQL query behind FF

Adds the production GraphQL surface for the GitLab-maintained bundled catalog resources (the second tab of the two-source browse, #603508 (closed)): a CiCatalogBundledResource type, an FF-gated resolver, and the root query field.

References

Two-source CI/CD Catalog browse: "your org" and... (#603508 - closed)

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