[Performance] Properly await deletion in journey

[thomasneirynck]

Summary

Closes #148619

Checklist

Delete any items that are not applicable to this PR.

• [ ] Any text added follows EUI's writing guidelines, uses sentence case text and includes i18n support
• [ ] Documentation was added for features that require explanation or tutorials
• Unit or functional tests were updated or added to match the most common scenarios
• [ ] Any UI touched in this PR is usable by keyboard only (learn more about keyboard accessibility)
• [ ] Any UI touched in this PR does not create any new axe failures (run axe in browser: FF, Chrome)
• [ ] If a plugin configuration key changed, check if it needs to be allowlisted in the cloud and added to the docker list
• [ ] This renders correctly on smaller devices using a responsive layout. (You can test this in your browser)
• [ ] This was checked for cross-browser compatibility

For maintainers

• This was checked for breaking API changes and was labeled appropriately

[dmlemeshko]

I ran it locally and can see the event been sent

Report event "performance_metric" {
 proc [functional-tests]      │        ebt_event: {
 proc [functional-tests]      │          timestamp: '2023-01-13T17:27:56.968Z',
 proc [functional-tests]      │          event_type: 'performance_metric',
 proc [functional-tests]      │          context: {
 proc [functional-tests]      │            isDev: true,
 proc [functional-tests]      │            isDistributable: false,
 proc [functional-tests]      │            version: '8.7.0',
 proc [functional-tests]      │            branch: 'main',
 proc [functional-tests]      │            buildNum: 9007199254740991,
 proc [functional-tests]      │            buildSha: 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX',
 proc [functional-tests]      │            session_id: 'f16313a3-9058-42d9-a64e-58a40609d407',
 proc [functional-tests]      │            user_agent: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36',
 proc [functional-tests]      │            preferred_language: 'en-GB',
 proc [functional-tests]      │            preferred_languages: [ 'en-GB' ],
 proc [functional-tests]      │            viewport_width: 1280,
 proc [functional-tests]      │            viewport_height: 720,
 proc [functional-tests]      │            cluster_name: 'elasticsearch',
 proc [functional-tests]      │            cluster_uuid: 'kd224oVlSTGEYYSBjp0ANg',
 proc [functional-tests]      │            cluster_version: '8.7.0-SNAPSHOT',
 proc [functional-tests]      │            pageName: 'application:dashboards:list',
 proc [functional-tests]      │            applicationId: 'dashboards',
 proc [functional-tests]      │            page: 'list',
 proc [functional-tests]      │            labels: {
 proc [functional-tests]      │              ciBuildNumber: 0,
 proc [functional-tests]      │              isPr: false,
 proc [functional-tests]      │              journeyName: 'dashboard_listing_page'
 proc [functional-tests]      │            },
 proc [functional-tests]      │            userId: '986051385feae5b9850804db2d701c0b029ad24f09bce340c12aee7a5c8a0391',
 proc [functional-tests]      │            isElasticCloudUser: false,
 proc [functional-tests]      │            license_id: 'd6c75e2d-eb2e-481f-8d3e-3f2b2d37748a',
 proc [functional-tests]      │            license_status: 'active',
 proc [functional-tests]      │            license_type: 'basic'
 proc [functional-tests]      │          },
 proc [functional-tests]      │          properties: {
 proc [functional-tests]      │            eventName: 'saved_object_delete_time',
 proc [functional-tests]      │            duration: 1189.699999988079,
 proc [functional-tests]      │            meta: { saved_object_type: 'dashboard', total: 1 }
 proc [functional-tests]      │          }
 proc [functional-tests]      │        }
 proc [functional-tests]      │      }

I can also see APM traces in place (harder to say if there any missing transactions), so I think we are good.

[kibana-ci]

💚 Build Succeeded

• Buildkite Build
• Commit: 46d467f

Metrics [docs]

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
dashboard	366.1KB	366.1KB	+46.0B
filesManagement	83.5KB	83.6KB	+46.0B
graph	450.6KB	450.7KB	+46.0B
maps	2.7MB	2.7MB	+46.0B
visualizations	260.1KB	260.2KB	+46.0B
total			+230.0B

History

• 💚 Build #99685 succeeded 81be8d5

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