docs: add Knar33 as a contributor for code

[allcontributors[bot]]

Adds @Knar33 as a contributor for code.

This was requested by fire in this comment

[skip ci]

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Name	Status	Preview	Comments	Updated (UTC)
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[fire]

@Knar33 Can you approve this?

[fire]

@all-contributors add emmyn5600 for code.