Remove Kubernetes v1.29 feature flag and make it the default cluster version

[abhay-krishna]

This PR removes the feature flag for Kubernetes v1.29 support and make it the default cluster version.

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

[abhay-krishna]

/hold

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (4583834) 73.48% compared to head (7a8df81) 73.52%.
Report is 108 commits behind head on main.

❗ Current head 7a8df81 differs from pull request most recent head 29ff726. Consider uploading reports for the commit 29ff726 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7598      +/-   ##
==========================================
+ Coverage   73.48%   73.52%   +0.03%     
==========================================
  Files         579      588       +9     
  Lines       36357    37155     +798     
==========================================
+ Hits        26718    27319     +601     
- Misses       7875     8038     +163     
- Partials     1764     1798      +34     

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[abhay-krishna]

/approve

[eks-distro-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: abhay-krishna

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[abhay-krishna]

/override eks-anywhere-presubmit eks-anywhere-generate-files-presubmits eks-anywhere-e2e-presubmit

[eks-distro-bot]

@abhay-krishna: Overrode contexts on behalf of abhay-krishna: eks-anywhere-e2e-presubmit, eks-anywhere-generate-files-presubmits, eks-anywhere-presubmit

In response to this:

/override eks-anywhere-presubmit eks-anywhere-generate-files-presubmits eks-anywhere-e2e-presubmit

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[abhay-krishna]

/unhold