Resolves rubocop offense Rails/WhereNot [RUN ALL RSPEC] [RUN AS-IF-FOSS]

What does this MR do?

• Resolves rubocop offense Rails/WhereNot

Contributes to #239356

As part of gitlab-com/marketing/community-relations/contributor-program/hackathon#50

Conformity

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• [-] Database guides
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Security

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