[CDK] Lambda.logRetention is deprecated

[coderbyheart]

[WARNING] aws-cdk-lib.aws_lambda.FunctionOptions#logRetention is deprecated.
instead create a fully customizable log group with logs.LogGroup and use the logGroup property to instruct the Lambda function to send logs to it.
Migrating from logRetention to logGroup will cause the name of the log group to change.
Users and code and referencing the name verbatim will have to adjust.

In AWS CDK code, you can access the log group name directly from the LogGroup construct:

declare const myLogGroup: logs.LogGroup;
myLogGroup.logGroupName;

This API will be removed in the next major release.