fix authors for release notes for CAPZ v1.13.6

[willie-yao]

What type of PR is this?
/kind documentation

What this PR does / why we need it:

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

Special notes for your reviewer:

• cherry-pick candidate

TODOs:

• squashed commits
• includes documentation
• adds unit tests

Release note:

NONE

[mboersma]

/lgtm
/approve

Thank you!

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mboersma

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• OWNERS [mboersma]

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[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 9c488910329ba3519320ca558b1b033338f52688

[willie-yao]

@mboersma also going to need a re-run on codecov here 🤣

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 62.01%. Comparing base (56dae5b) to head (f3308f6).
Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4827      +/-   ##
==========================================
- Coverage   62.02%   62.01%   -0.02%     
==========================================
  Files         201      201              
  Lines       16857    16857              
==========================================
- Hits        10456    10454       -2     
- Misses       5618     5620       +2     
  Partials      783      783              

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