Update CODEOWNERS - remove nikki

[eapolinario]

Why are the changes needed?

Stop spamming @neverett

What changes were proposed in this pull request?

How was this patch tested?

Setup process

Screenshots

Check all the applicable boxes

• I updated the documentation accordingly.
• All new and existing tests passed.
• All commits are signed-off.

Related PRs

Docs link

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 36.96%. Comparing base (f62c7b6) to head (16514a6).
Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6015      +/-   ##
==========================================
- Coverage   36.97%   36.96%   -0.01%     
==========================================
  Files        1312     1312              
  Lines      131516   131516              
==========================================
- Hits        48623    48617       -6     
- Misses      78666    78672       +6     
  Partials     4227     4227              

Flag	Coverage Δ
unittests-datacatalog	51.58% <ø> (ø)
unittests-flyteadmin	54.05% <ø> (-0.03%)	⬇️
unittests-flytecopilot	22.23% <ø> (ø)
unittests-flytectl	62.39% <ø> (ø)
unittests-flyteidl	7.05% <ø> (ø)
unittests-flyteplugins	53.80% <ø> (ø)
unittests-flytepropeller	43.10% <ø> (ø)
unittests-flytestdlib	55.31% <ø> (ø)

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