[Feature] Trim stack names or provide an early warning

[errordeveloper]

What feature/behavior/change do you want?

When creating a cluster with a relatively long name, like ilya-abcdefg-test1-graviton, and having an IRSA config with SAs with long namespace+name string, e.g. Cluster API in my case, one can hit this:

2024-04-05 11:05:21 [✖]  creating CloudFormation stack "eksctl-ilya-abcdefg-test1-graviton-addon-iamserviceaccount-capa-eks-control-plane-system-capa-eks-control-plane-controller-manager": operation error CloudFormation: CreateStack, https response error StatusCode: 400, RequestID: b6b36dbe-eed8-4fe1-bbab-bf398fd3c089, api error ValidationError: Stack name cannot exceed 128 characters

What is unfortunate is that this error could have been caught or avoided earlier. In this case, I had to wait 10 minutes for this error to come up.

Why do you want this feature?

Failing early is always better :)