Create AWS Access for Kubermatic to create prow clusters

[hh]

@xmudrii and the team at Kubermatic need AWS creds.

Would be good to document the process for either the AWS Account or IAM user creation process here:
https://github.com/kubernetes/k8s.io/blob/main/infra/aws/terraform/README.md#infraawsterraform

This is in support of #4686

[ameukam]

/assign @jeefy

/area infra/aws
/priority important-soon
/milestone v1.27

[hh]

@ameukam I can create this manually now, or you can document approach you want.

[ameukam]

@ameukam I can create this manually now, or you can document approach you want.

I'll defer to @jeefy on the approach here. Possible he need one sync with Kubermatic folx before we do something.

[jeefy]

I think our default state for the next ~1.5mo is "move (reasonably) fast and do true best practices later" so yeah, I say @hh unblock @xmudrii and create them manually.

P-1 and P0 aren't "do the best thing first", and doing this sooner gives us breathing room to do it right later.

[hh]

I've created [email protected] and given the password to Kubermatic

[ameukam]

xRef: #4686