Add johngmyers as reviewer

[johngmyers]

Adds johngmyers as reviewer

Per the requirements:

[x] member for at least 3 months
[x] Primary reviewer for at least 5 PRs to the codebase
#2950, #2942, #2425, #2963, #2988,
#2986
[x] Reviewed or merged at least 20 substantial PRs to the codebase
#2950, #2942, #2880, #2866, #2453,
#2435, #2433, #2425, #2442, #2500,
#2443, #2963, #2735, #2881, #2840,
#2987, #2988, #2992, #2993, #2955,
#2990,
[x] Knowledgeable about the codebase
[ ] Sponsored by a subproject approver
[ ] With no objections from other approvers
[x] Done through PR to update the OWNERS file
[x] May either self-nominate, be nominated by an approver in this subproject, or be nominated by a robot

[codecov-commenter]

Codecov Report

Base: 54.01% // Head: 54.01% // No change to project coverage 👍

Coverage data is based on head (75572e1) compared to base (fecb1af).
Patch has no changes to coverable lines.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2999   +/-   ##
=======================================
  Coverage   54.01%   54.01%           
=======================================
  Files         144      144           
  Lines        8312     8312           
=======================================
  Hits         4490     4490           
  Misses       3494     3494           
  Partials      328      328           

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: johngmyers, kishorj, M00nF1sh

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [M00nF1sh,kishorj]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[kishorj]

/lgtm

Thanks for your contributions.