Bump Go version to 1.23

[abhay-krishna]

Bump Go version to v1.23 and controller-gen to v0.16.5 in eks-anywhere codebase.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.39%. Comparing base (79b3a53) to head (74da858).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9146      +/-   ##
==========================================
- Coverage   72.37%   69.39%   -2.98%     
==========================================
  Files         585      668      +83     
  Lines       45713    48702    +2989     
==========================================
+ Hits        33085    33797     +712     
- Misses      10890    13141    +2251     
- Partials     1738     1764      +26     

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[abhay-krishna]

/retest

[abhay-krishna]

/retest

[eks-distro-bot]

@abhay-krishna: 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-generate-files-presubmit	74da858	link	true	/test eks-anywhere-generate-files-presubmit

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