[aws-s3] Add system tests for multiple inputs

[bhapas]

#7034 added system tests for packages and data_streams with aws-s3 input.

With the current test setup , it is not possible to add system tests for multiple inputs within a data_stream. elastic/elastic-package#1302 should add these capabilities.

• crowdstrike
• carbon_black_cloud
• cloudflare_logpush
• f5_bigip
• lyve_cloud
• tanium
• amazon_security_lake [amazon_security_lake] Add system tests for aws-s3 input #8303

[elasticmachine]

Pinging @elastic/security-scalability (Team:Security-Scalability)

[elasticmachine]

Pinging @elastic/sec-deployment-and-devices (Team:Security-Deployment and Devices)

[elasticmachine]

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