Update dependency mongoose to v8.8.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
mongoose (source)	8.8.0 -> 8.8.1

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Release Notes

Automattic/mongoose (mongoose)

v8.8.1

Compare Source

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• perf: make a few micro-optimizations to help speed up findOne() #​15022 #​14906
• fix: apply embedded discriminators to subdoc schemas before compiling top level model so middleware applies correctly #​15001 #​14961
• fix(query): add overwriteImmutable option to allow updating immutable properties without disabling strict mode #​15000 #​8619

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