Allow filtering alertManagementIntegrations GraphQL by ID [RUN ALL RSPEC] [RUN AS-IF-FOSS]

What does this MR do?

Related to #321674 (closed)

All the discussions related to implementation details can be found here !56647 (closed)

Example queries

`alertManagementIntegrations` with Http Integration ID

Query

query Extract($fullPath: ID!, $id: ID!) {
  project(fullPath: $fullPath) {
    alertManagementIntegrations(id: $id) {
      nodes {
        id
        active
        name
        ... on AlertManagementHttpIntegration {
          payloadExample
          payloadAlertFields {
            type path label
          }
        }
      }
    }
  }
}

Query Variables

{
  "fullPath": "ck3g/new-playground",
  "id": "gid://gitlab/AlertManagement::HttpIntegration/5"
}

`alertManagementIntegrations` with Prometheus Integration ID

Query

query Extract($fullPath: ID!, $id: ID!) {
  project(fullPath: $fullPath) {
    alertManagementIntegrations(id: $id) {
      nodes {
        id
        active
        name
        ... on AlertManagementHttpIntegration {
          payloadExample
          payloadAlertFields {
            type path label
          }
        }
      }
    }
  }
}

Query Variables

{
  "fullPath": "ck3g/new-playground",
  "id": "gid://gitlab/PrometheusService/12"
}

`alertManagementHttIntegrations` with ID

Query

query Extract($fullPath: ID!, $id: ID!) {
  project(fullPath: $fullPath) {
    alertManagementHttpIntegrations(id: $id) {
      nodes {
        id
        active
        name
        payloadExample
        payloadAlertFields {
          type path label
        }
      }
    }
  }
}

Query Variables

{
  "fullPath": "ck3g/new-playground",
  "id": "gid://gitlab/AlertManagement::HttpIntegration/5"
}

Screenshots

alertManagementIntegrations with Http Integration ID	alertManagementIntegrations with Prometheus Integration ID	alertManagementHttIntegrations with ID

Does this MR meet the acceptance criteria?

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• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
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• [-] Label as security and @ mention @gitlab-com/gl-security/appsec
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