feat: (IAC-901) Add K8s 1.25 support and Support Aliased Versions

[jarpat]

Changes

Since the SAS Viya Platform will be supporting K8s 1.23, 1.24, and 1.25 in March as part of the 2023.03 cadence, the kubectl version is being changed to 1.24.10 so that it's within the +/- 1 range of the supported versions.

We've also now added support for using aliased kubernetes versions.

This is only applicable in the "version based" scenario (omitting kubernetes_channel or setting it to "UNSPECIFIED"), Google supports the use of aliased versions when creating your kubernetes cluster. The required format for using aliased versions in your tfvars for kubernetes_version looks like:

• 1.X
  • Specifies the highest valid patch+gke.N patch release in the 1.X minor version
• 1.X.Y
  • Specifies the highest valid gke.N patch in the 1.X.Y patch release.

For example you could set:

kubernetes_version = "1.24"

And Google will choose the "highest valid patch+gke.N patch release in the 1.24 minor version" they currently have available.

Setting the full version like before is still supported. (e.g. 1.24.9-gke.3200)

The Kubernetes Versions documentation has been updated to describe this usage

Tests

Ran through the following scenarios, the internal ticket has more details.

Scenario	Task	Provider	Order	Cadence	kubernetes_version	Actual Kubernetes Cluster Version	Orchestration	Deployment Method	kubectl Version	INGRESS_NGINX_CHART_VERSION
1	OOTB	GCP	------	stable:2023.02	1.24	1.24.9-gke.3200	Deployment Operator	Docker	1.24.10	4.3.0
2	OOTB	GCP	------	stable:2023.01	1.23.15	1.23.15-gke.1900	Deployment Operator	Docker	1.24.10	4.3.0
3	OOTB + Logging Monitoring	GCP	------	fast:2020	1.25.6-gke.200	1.25.6-gke.200	Deployment Operator	Docker	1.24.10	4.3.0