(All constructs): Update default properties and cost estimates

[krokoko]

Describe the issue

Update cost estimates in documentation + default properties following recent add ons (VPC flow logs,...)

Links

https://github.com/awslabs/generative-ai-cdk-constructs/tree/main/src every README

[github-actions]

This issue is now marked as stale because it hasn't seen activity for a while. Add a comment or it will be closed soon. If you wish to exclude this issue from being marked as stale, add the "backlog" label.

[github-actions]

Closing this issue as it hasn't seen activity for a while. Please add a comment @mentioning a maintainer to reopen. If you wish to exclude this issue from being marked as stale, add the "backlog" label.