Add ability to fetch DastSiteProfile via GraphQL

What does this MR do?

adds new graphql field to project in order to allow the frontend to retrieve individual dast_site_profiles.

query project($fullPath: ID!, $id: ID!) {
  project(fullPath: $fullPath) {
    dastSiteProfile(id: $id) {
      id
      profileName
      targetUrl
      validationStatus
    }
  }
}

Related Issue(s)

follows from discussion in !38315 (merged)

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