feat: verify aws region for aws installs has enough azs

[echoboomer]

❯ go run . aws create \
   --git-provider gitlab \
   --gitlab-group kubefirst/kubefirst.xyz \
   --cluster-name kubefirst-xyz \
   --alerts-email devops@kubefirst.io \
   --domain-name kubefirst.xyz \
   --cloud-region us-west-1
------------------------------------------------
Follow your logs in a new terminal with:
   tail -f -n +1 /Users/scott/.k1/logs/log_1680281122.log
------------------------------------------------
Error: aws region us-west-1 has 2 availability zones - kubefirst requires at least 3 - please select a different region

the following regions are compatible:

[ap-south-1 eu-north-1 eu-west-3 eu-west-2 eu-west-1 ap-northeast-3 ap-northeast-2 ap-northeast-1 ca-central-1 sa-east-1 ap-southeast-1 ap-southeast-2 eu-central-1 us-east-1 us-east-2 us-west-2]

Usage:
  kubefirst aws create [flags]

Flags:
      --alerts-email string             email address for let's encrypt certificate notifications (required)
      --cloud-region string             the aws region to provision infrastructure in (default "us-east-1")
      --cluster-name string             the name of the cluster to create (default "kubefirst")
      --cluster-type string             the type of cluster to create (i.e. mgmt|workload) (default "mgmt")
      --domain-name string              the Route53 hosted zone name to use for DNS records (i.e. your-domain.com|subdomain.your-domain.com) (required)
      --dry-run                         don't execute the installation
      --git-provider string             the git provider - one of: [github gitlab] (default "github")
      --github-org string               the GitHub organization for the new gitops and metaphor repositories - required if using github
      --gitlab-group string             the GitLab group for the new gitops and metaphor projects - required if using gitlab
      --gitops-template-branch string   the branch to clone for the gitops-template repository (default "main")
      --gitops-template-url string      the fully qualified url to the gitops-template repository to clone (default "https://github.com/kubefirst/gitops-template.git")
  -h, --help                            help for create
      --kbot-password string            the default password to use for the kbot user
      --use-telemetry                   whether to emit telemetry (default true)

exit status 1