[Cloud Security] update sanity ui tests

[gurevichdmitry]

Summary

This PR updates the sanity UI tests to use data-test-subj properties.

Screenshot/Data

UI Sanity Test Report

Workflow Successful Run

[JordanSh]

LGTM

[kibana-ci]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: 268fba6

Failed CI Steps

• x-pack/test/cases_api_integration/security_and_spaces/config_trial.ts

Test Failures

• [job] [logs] x-pack/test/cases_api_integration/security_and_spaces/config_trial.ts / cases security and spaces enabled: trial get_connectors retrieving fields retrieves a single connector using the create case user action

Metrics [docs]

✅ unchanged

History

• 💚 Build #226270 succeeded 7b86183

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

[elasticmachine]

Pinging @elastic/kibana-cloud-security-posture (Team:Cloud Security)