feat(ecs): implement IConnectable interface for ManagedInstancesCapacityProvider

[aemada-aws]

Issue # (if applicable)

Call out from #35742

ManagedInstancesCapacityProvider should implement IConnectable to make managing the SGs for the provider easier. This was missed in the initial PR.

Reason for this change

Implement IConnectable for ManagedInstancesCapacityProvider. ManagedInstancesCapacityProvider makes use of EC2 security groups, so it should implement this interface.

Description of changes

Implement IConnectable for ManagedInstancesCapacityProvider

Describe any new or updated permissions being added

None

Description of how you validated changes

Modified and deployed integ test

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

---

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

[mergify]

Thank you for contributing! Your pull request will be updated from main and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).

[mergify]

This pull request has been removed from the queue for the following reason: pull request branch update failed.

The pull request can't be updated.

You should update or rebase your pull request manually. If you do, this pull request will automatically be requeued once the queue conditions match again.
If you think this was a flaky issue, you can requeue the pull request, without updating it, by posting a @mergifyio requeue comment.

[mergify]

Thank you for contributing! Your pull request will be updated from main and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).

[mergify]

Thank you for contributing! Your pull request will be updated from main and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).

[mergify]

Thank you for contributing! Your pull request will be updated from main and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).

[github-actions]

Comments on closed issues and PRs are hard for our team to see.
If you need help, please open a new issue that references this one.