refactor: use Object.hasOwn instead of Object#hasOwnProperty

[AbdelrahmanHafez]

Port #15866 to 8.x

[Copilot]

Pull request overview

This PR refactors the codebase to use the modern Object.hasOwn() API instead of the legacy Object.prototype.hasOwnProperty.call() and .hasOwnProperty() patterns. This is a port of #15866 to the 8.x branch, bringing consistency and modernization to property existence checks across the codebase.

Key changes:

• Replaced all instances of .hasOwnProperty() and Object.prototype.hasOwnProperty.call() with Object.hasOwn()
• Removed the custom utility function exports.object.hasOwnProperty from lib/utils.js
• Applied optional chaining (?.) in some locations to simplify null checks

Reviewed changes

Copilot reviewed 30 out of 30 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
lib/virtualType.js	Updated property check to use Object.hasOwn()
lib/utils.js	Removed deprecated hasOwnProperty utility function and updated hasUserDefinedProperty
lib/types/objectid.js	Updated prototype property check
lib/types/documentArray/index.js	Converted proxy handler property checks and added optional chaining
lib/types/array/index.js	Converted proxy handler property checks and added optional chaining
lib/schemaType.js	Updated constructor and instance property checks
lib/schema/array.js	Updated type checking logic
lib/schema.js	Converted numerous property existence checks across schema operations
lib/query.js	Updated option and discriminator key checks
lib/mongoose.js	Updated model caching checks and added optional chaining
lib/model.js	Updated session option checks and hook context checks
lib/helpers/update/decorateUpdateWithVersionKey.js	Simplified hasKey helper function
lib/helpers/update/applyTimestampsToUpdate.js	Updated timestamp update checks
lib/helpers/timestamps/setupTimestamps.js	Updated currentTime option check
lib/helpers/setDefaultsOnInsert.js	Updated path existence checks
lib/helpers/query/getEmbeddedDiscriminatorPath.js	Updated array filter checks
lib/helpers/projection/applyProjection.js	Updated projection property checks
lib/helpers/populate/*.js	Updated various populate-related property checks
lib/helpers/model/castBulkWrite.js	Updated discriminator key check
lib/helpers/model/applyMethods.js	Updated method conflict check
lib/helpers/indexes/*.js	Updated index-related property checks
lib/helpers/common.js	Updated nested path check
lib/drivers/node-mongodb-native/connection.js	Updated option and collection property checks
lib/document.js	Extensive updates to property checks and refactored filter chain to for loop
lib/connection.js	Updated config, session, and collection property checks
lib/cast.js	Updated schema path check
lib/aggregate.js	Updated session option check

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[vkarpov15]

Works for me. Just for completeness, Object.hasOwn() has been in Node.js since 16.9.0, and Mongoose 8 requires >=16.20.1 so this is safe.