[Type] Enhancement - Adds recursive sanitization function for arrays.

[vipul0425]

This PR adds function that recursively sanitizes data structures, allowing for comprehensive sanitization of arrays and objects based on specified contexts.

Trac ticket: https://core.trac.wordpress.org/ticket/63727

[github-actions]

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Props vipulgupta003, mindctrl, ajayver.

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[github-actions]

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[mindctrl]

I like the idea. I'm just eyeballing the code, so no testing or deep thought, but I think we need some phpunit tests here for this to be considered for merge.

[ajayver]

I have added unit tests for the proposed function here: #9314
Feel free to pull it in or merge if useful