[Security Solution][Explore] Cypress last adjustments for MKI

[MadameSheema]

Summary

After executing the tests at the MKI pipeline I saw that:

• One test was failing because in cloud there is a default SMTP connector that cannot be deleted, and we were trying to do so.
• Author name when creating a case, is different.

In this PR we are fixing the above.

[MadameSheema]

/ci

[elasticmachine]

Pinging @elastic/security-solution (Team: SecuritySolution)

[elasticmachine]

Pinging @elastic/security-threat-hunting-explore (Team:Threat Hunting:Explore)

[kibana-ci]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: 53fc5c7

Failed CI Steps

• Defend Workflows Cypress Tests #6

Test Failures

• [job] [logs] Defend Workflows Cypress Tests #6 / Response console Host Isolation: should isolate a host from response console should isolate a host from response console

Metrics [docs]

✅ unchanged

History

• 💛 Build #198824 was flaky b5f49ab
• 💛 Build #198791 was flaky 30f65b6

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

cc @MadameSheema