[Akamai] - Migrated SIEM data stream from HTTPJSON to CEL input

[ShourieG]

Type of change

• Enhancement
• Breaking Change

Proposed commit message

Migrated SIEM data stream from HTTPJSON to CEL input with 
with necessary reworks and working system tests. Updated 
minimum stack version to 8.18 to allow usage of required CEL functions. 

Checklist

• I have reviewed tips for building integrations and this pull request is aligned with them.
• I have verified that all data streams collect metrics or logs.
• I have added an entry to my package's changelog.yml file.
• I have verified that Kibana version constraints are current according to guidelines.
• I have verified that any added dashboard complies with Kibana's Dashboard good practices

Author's Checklist

• [ ]

How to test this PR locally

Related issues

• Closes [Akamai] - Add option for a CEL based agent and integrate automatic error recovery. #11338
• Relates [Akamai] - Add option for a CEL based agent and integrate automatic error recovery. #11338

Screenshots

[elasticmachine]

Pinging @elastic/security-service-integrations (Team:Security-Service Integrations)

[ShourieG]

@efd6, addressed all the changes

[ShourieG]

@efd6, addressed all the comments. Let's approve this once we have successfully tested with a live api, there seems to be some outstanding issues still. Let me know if the current changes are ok or not.

[efd6]

Code LGTM. Will wait for confirmation of success against live endpoint for approval.

[elastic-vault-github-plugin-prod]

🚀 Benchmarks report

To see the full report comment with /test benchmark fullreport

[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: c40f155

History

• 💚 Build #34357 succeeded ce5425f
• 💚 Build #34080 succeeded a4f0257
• 💔 Build #33886 failed 68001ca
• 💚 Build #33659 succeeded 67eb579
• 💚 Build #33501 succeeded 78c91b6
• 💚 Build #33429 succeeded 7993a5e

cc @ShourieG

[elastic-vault-github-plugin-prod]

Package akamai - 3.0.0 containing this change is available at https://epr.elastic.co/package/akamai/3.0.0/