Fix the `vulnerabilitySeveritiesCount` query for the group security dashboard

Why are we doing this work

The counts of severities are wrong for projects in the "Project security status" list for the "group security dashboard" because the client application is not sending the state parameter to GraphQL API to fetch vulnerabilitySeveritiesCount.

Relevant links

• Discovered while testing the solution for #244380 (closed)

Implementation plan

• frontend Send the state parameter as [DETECTED, CONFIRMED] while fetching the vulnerabilitySeveritiesCount. The query for group level can be located here: ee/app/assets/javascripts/security_dashboard/graphql/group_vulnerability_grades.query.graphql.
• frontend Please note that the query is used in first_class_vulnerability_severities.vue which is used by both the instance and group level dashboards. Therefore we'll also need to update the instance level query which can be located here: ee/app/assets/javascripts/security_dashboard/graphql/instance_vulnerability_grades.query.graphql

I believe once the queries are updated, we can hard-code the state filters in ee/app/assets/javascripts/security_dashboard/components/first_class_vulnerability_severities.vue as in the dashboards we don't have the concept of filters.

An example query looks like;

query getVulnerabilitySeveritiesCount {
  project(fullPath: "...") {
    vulnerabilitySeveritiesCount(state: [DETECTED, CONFIRMED]) {
      critical
      high
      medium
      low
      unknown
      info
    }
  }
}