[meta][CDR] Update Google SCC integration to Leverage Native CDR Workflows

[kcreddy]

As part of effort to leverage Cloud Detection and Response (CDR) workflows such as Elastic CSPM and CNVM for 3rd party integrations, the cloud security findings data from Google Security Command Center needs to be enriched just like previous enhancements for AWS Security Hub.

For this work, the google_scc.finding data stream must be enriched to support Elastic CSPM workflow.

Tasks:

• Get access to Google SCC instance.
• Deploy in SEI demo environment ?
• Analyse mappings for Google SCC and get necessary clarifications.
• Google SCC: Implement mappings for Cloud Security Workflows #13899
• Google SCC: Implement transform for Cloud Security Workflows #13900

Success Criteria
Integration to be updated GSCC- https://www.elastic.co/docs/current/integrations/google_scc
The findings from GSCC which are compliance related findings i.e., CSPM/KSPM should be part of the 3rd party data view and mapped to the ECS schema supported by Cloud Security features.
To develop ES and Kibana assets (transforms, ingest pipelines, data views, etc.) required to make the data from GSCC integrations available in the Cloud Security features.

[elasticmachine]

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