1. Create `ee/app/graphql/types/package_metadata/advisory_type.rb`
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## Overview
:information_source: Please note the use the `ee/` in directories and `EE` in code because [advisory data is GitLab EE only feature](https://handbook.gitlab.com/handbook/product/categories/features/#vulnerability-research).
This work item covers creating `ee/app/graphql/types/package_metadata/advisory_type.rb` along with tests. This GraphQL type will represent the `ee/app/models/package_metadata/advisory.rb` model.
## Actions
- [x] Create `ee/app/graphql/types/package_metadata/advisory_type.rb` (you'll need to create the `ee/app/graphql/types/package_metadata` directory first).
- [ ] ~~Ensure we consider [limiting maximum field call count](https://docs.gitlab.com/development/api_graphql_styleguide/#limit-maximum-field-call-count) (if appropriate).~~ _Not applicable here_
- [x] Create `spec/graphql/types/package_metadata/advisory_type_spec.rb` to fully test `ee/app/graphql/types/package_metadata/advisory_type.rb`.
- [x] Ensure GraphQL query returns complete advisory information (severity, description, CVSS scores, identifiers) for queried CVE IDs.
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