[IBCDPE-939] Correcting some issues

[BryanFauble]

Problem:

1. No instructions were provided on authenticating to the cluster
2. We were not setting a version on the terraform provider. I set this to the max provided by spacelift. To go beyond this version we'll need to consider using the OpenTofu backend/provider.
3. We didn't have a CODEOWNERS
4. Permissions should not have been given as administrator
5. spotinst has 3 item currently being deployed. From the documentation I can find spotinst/kubernetes-controller/ocean seems like it was a mistake to add this
6. We had no automatic checking of terraform in the CI pipeline

Solution:

1. Adding all of the above items

Testing:

1. Will be checking the terraform plan

[thomasyu888]

Very neat action!

[thomasyu888]

Thanks, these instructions worked for me!

➜  ~ kubectl get namespace
NAME              STATUS   AGE
airflow           Active   3d3h
default           Active   3d18h
kube-node-lease   Active   3d18h
kube-public       Active   3d18h
kube-system       Active   3d18h
spot-system       Active   3d14h```

[thomasyu888]

🔥 fantastic - great additions here. Thanks for lowering the Admin access to power user as well. This is coming together nicely!