build(deps): update dependency mongoose to ^8.7.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
mongoose (source)	^8.7.0 -> ^8.7.1

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Release Notes

Automattic/mongoose (mongoose)

v8.7.1

Compare Source

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• fix: set flattenObjectIds to false when calling toObject() for internal purposes #​14938
• fix: add mongodb 8 to test matrix #​14937
• fix: handle buffers stored in MongoDB as EJSON representation with { $binary } #​14932
• docs: indicate that Mongoose 8.7 is required for full MongoDB 8 support #​14937

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