feat: Add support for restartPolicy

[psantus]

Description

ECS now supports the ability to restart containers when they crash.

Supporting documentation:

• https://docs.aws.amazon.com/AmazonECS/latest/APIReference/API_ContainerRestartPolicy.html
• https://aws.amazon.com/about-aws/whats-new/2024/08/amazon-ecs-restart-containers-task-relaunch/

Motivation and Context

Fixes #230

Breaking Changes

Shouldn't be breaking as older terraform provider versions will just ignore restartPolicy and a default value is provided with enabled = false (default behaviour when it's absent)

How Has This Been Tested?

• I have updated at least one of the examples/* to demonstrate and validate my change(s)
• I have tested and validated these changes using one or more of the provided examples/* projects

• I have executed pre-commit run -a on my pull request

[psantus]

[psantus]

It now works fine (fixed the validation test on var.restart_policy)

[psantus]

@bryantbiggs is the "Optional object type attributes are experimental" fail a problem? I believe it's long been in Terraform core (since 1.3)

[bryantbiggs]

it was introduced in Terraform 1.3, but on main we only support Terraform 1.0 and hence the failure (edit - on main we provide support up to a MSV of 1.0)

[psantus]

Cheers @bryantbiggs.
Do you have an ETA for v6?

[RRosalia]

This is amazing! When will a new tag release be done? So we can start using it?

[github-actions]

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