AWS lambda documentation change
Summary
Renamed and updated file to document the MicrovmItem structure for AWS Lambda MicroVMs, including fields like imageArn, imageVersion, microvmId, startedAt, and state
Security assessment
This is a complete rewrite of documentation for a different AWS service (from DataBrew to Lambda MicroVMs). The new content describes general operational attributes of MicroVM instances without mentioning security vulnerabilities, security controls, or security features.