Add extended kubernetes version support validations for create and upgrade CLI operations

[panktishah26]

Issue #, if available:
#6793

Description of changes:
Validate extended kubernetes version support for eks-a create and upgrade CLI operations.

Testing (if applicable):

Documentation added/planned (if applicable):

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[codecov]

Codecov Report

Attention: Patch coverage is 80.00000% with 6 lines in your changes missing coverage. Please review.

Project coverage is 72.33%. Comparing base (30fa933) to head (a50bebe).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
cmd/eksctl-anywhere/cmd/validatecreatecluster.go	0.00%	2 Missing ⚠️
cmd/eksctl-anywhere/cmd/createcluster.go	0.00%	1 Missing ⚠️
cmd/eksctl-anywhere/cmd/upgradecluster.go	0.00%	1 Missing ⚠️
pkg/providers/tinkerbell/upgrade.go	0.00%	1 Missing ⚠️
pkg/validations/extendedversion.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9225      +/-   ##
==========================================
+ Coverage   72.32%   72.33%   +0.01%     
==========================================
  Files         587      587              
  Lines       46081    46108      +27     
==========================================
+ Hits        33328    33353      +25     
- Misses      11003    11005       +2     
  Partials     1750     1750              

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[jacobweinstock]

Suggested change

	Remediation: "ensure you have a valid license to support extended kubernetes version support",
	Remediation: "ensure you have a valid license for extended Kubernetes version support",

[jacobweinstock]

Suggested change

	Remediation: "ensure you have a valid license to support extended kubernetes version support",
	Remediation: "ensure you have a valid license for extended Kubernetes version support",

[eks-distro-bot]

@panktishah26: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
eks-anywhere-release-tooling-test-presubmit	7fb9c91	link	true	/test eks-anywhere-release-tooling-test-presubmit

Full PR test history. Your PR dashboard.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. I understand the commands that are listed here.

[panktishah26]

/retest

[eks-distro-bot]

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