[9.0] Upgrade net-imap to 0.5.6

[mashhurs]

Release notes

[rn:skip]

What does this PR do?

Upgrades net-imap to 0.5.6

Why is it important/What is the impact to the user?

Checklist

• [ ] My code follows the style guidelines of this project
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [ ] I have made corresponding change to the default configuration files (and/or docker env variables)
• [ ] I have added tests that prove my fix is effective or that my feature works

Author's Checklist

• [ ]

How to test this PR locally

Related issues

Use cases

Screenshots

Logs

[elasticmachine]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: c3405df

Failed CI Steps

• 🥼 Integration Tests / part 1
• 🥼 Integration Tests / part 1
• 🥼 Integration Tests / part 2
• 🥼 Integration Tests / part 2
• 🥼 IT Persistent Queues / part 1
• 🥼 IT Persistent Queues / part 1
• 🥼 IT Persistent Queues / part 2
• 🥼 IT Persistent Queues / part 2
• 🥼 x-pack integration

History

[elastic-sonarqube]

Quality Gate passed

Issues
0 New issues
0 Fixed issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarQube

[mashhurs]

Flaky errors were due to temporary 503 on artifacts API:

2025-02-12 10:40:53 PST | * What went wrong:
-- | --
  | 2025-02-12 10:40:53 PST | Execution failed for task ':configureArtifactInfo'.
  | 2025-02-12 10:40:53 PST | > java.io.IOException: Server returned HTTP response code: 503 for URL: https://artifacts-api.elastic.co/v1/versions

[robbavey]

lgtm

[robbavey]

lgtm