Clarify EKS-A version support for enterprise customer

[jiayiwang7]

Issue #, if available:

Description of changes:

Testing (if applicable):

Documentation added/planned (if applicable):

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[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (79c297c) 71.70% compared to head (642044f) 71.75%.
Report is 17 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6778      +/-   ##
==========================================
+ Coverage   71.70%   71.75%   +0.04%     
==========================================
  Files         531      531              
  Lines       41121    41248     +127     
==========================================
+ Hits        29486    29597     +111     
- Misses       9981     9993      +12     
- Partials     1654     1658       +4     

see 6 files with indirect coverage changes

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[csplinter]

Approved with comments

[jiayiwang7]

/approve
/cherry-pick release-0.17

[eks-distro-pr-bot]

@jiayiwang7: once the present PR merges, I will cherry-pick it on top of release-0.17 in a new PR and assign it to you.

In response to this:

/approve
/cherry-pick release-0.17

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[eks-distro-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jiayiwang7

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[csplinter]

/lgtm

[eks-distro-pr-bot]

@jiayiwang7: new pull request created: #6794

In response to this:

/approve
/cherry-pick release-0.17

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.