Run ECS/EKS AMI monitoring script

[Khatraf]

User Story

As a MP engineer
I want to monitor the versions of ECS/EKS-optimised AMIs in use by members' clusters
So that I can notify members when their AMIs are outdated

Value / Purpose

Following on #8329, this issue is to run the ECS/EKS AMI script. Any accounts found using outdated AMIs should be flagged, and the relevant teams should be notified. Analytical Platform and data-platform-apps-and-tools can be ignored.
Additionally, it can be recommended that teams consider using the SSM Parameter resolve syntax to automatically reference the latest ECS/EKS AMI. This approach ensures that instances always launch with the latest AMI, eliminating the need to manually update or re-apply Terraform when using a data call.

Context / Background

#6317 - requirement originated from this spike ticket.

Useful Contacts

No response

Additional Information

No response

Definition of Done

• The ECS/EKS outdated AMI monitoring script is successfully executed across all accounts
• Accounts that are found to have outdated AMIs contacted for remediation
• Raise another follow on ticket for script to be run again in 2-3 months if needed