Bump mongoose from 4.13.19 to 5.8.4 in /examples/promises

[dependabot]

Bumps mongoose from 4.13.19 to 5.8.4.

Changelog

Sourced from mongoose's changelog.

5.8.4 / 2020-01-02

• fix(populate): ensure populate virtual gets set to empty array if localField is undefined in the database #8455
• fix(connection): wrap mongoose.connect() server selection timeouts in MongooseTimeoutError for more readable stack traces #8451
• fix(populate): allow deselecting foreignField from projection by prefixing with - #8460
• fix(populate): support embedded discriminators with refPath when not all discriminator schemas have refPath #8452
• fix(array): allow defining enum on array if an array of numbers #8449

5.8.3 / 2019-12-23

• fix: upgrade mongodb -> 3.4.1 #8430 jaschaio
• fix(populate): don't add empty subdocument to array when populating path underneath a non-existent document array #8432
• fix(schema): handle _id option for document array schematypes #8450
• fix(update): call setters when updating mixed type #8444
• docs(connections): add note about MongoTimeoutError.reason #8402

5.8.2 / 2019-12-20

• fix(schema): copy .add()-ed paths when calling .add() with schema argument #8429
• fix(cursor): pull schema-level readPreference when using Query#cursor() #8421
• fix(cursor): wait for all promises to resolve if parallel is greater than number of documents #8422
• fix(document): depopulate entire array when setting array path to a partially populated array #8443
• fix: handle setDefaultsOnInsert with deeply nested subdocs #8392
• fix(document): report DocumentNotFoundError if underlying document deleted but no changes made #8428 #8371 AbdelrahmanHafez
• docs(populate): clarify limitations of limit option for populate and suggest workaround #8409
• docs(deprecations): explain which connection options are no longer relevant with useUnifiedTopology #8411
• chore: allow browser build to be published #8435 #8427 captaincaius

5.8.1 / 2019-12-12

• fix(documentarray): dont attempt to cast when modifying array returned from map() #8399
• fix(document): update single nested subdoc parent when setting to existing single nested doc #8400
• fix(schema): add $embeddedSchemaType property to arrays for consistency with document arrays #8389

5.8.0 / 2019-12-09

• feat: wrap server selection timeout errors in MongooseTimeoutError to retain original stack trace #8259
• feat(model): add Model.validate() function that validates a POJO against the model's schema #7587
• feat(schema): add Schema#pick() function to create a new schema with a picked subset of the original schema's paths #8207
• feat(schema): add ability to change CastError message using cast option to SchemaType #8300
• feat(schema): group indexes defined in schema path with the same name #6499
• fix(model): build all indexes even if one index fails #8185 unusualbob
• feat(browser): pre-compile mongoose/browser #8350 captaincaius
• fix(connection): throw error when setting unsupported option #8335 #6899 AbdelrahmanHafez
• feat(schema): support enum validator for number type #8139
• feat(update): allow using MongoDB 4.2 update aggregation pipelines, with no Mongoose casting #8225
• fix(update): make update validators run on all subpaths when setting a nested path, even omitted subpaths #3587
• feat(schema): support setting _id as an option to single nested schema paths #8137
• feat(query): add Query#mongooseOptions() function #8296
• feat(array): make MongooseArray#push() support using $position #4322

... (truncated)

Commits

• 4433d6c chore: release 5.8.4
• ae80b5b chore: update opencollective sponsors
• f89a67b docs(model): clean up some docs re: aggregate()
• 0729b23 style: fix lint
• 9261d9d fix(populate): allow deselecting foreignField from projection by prefixing ...
• b6f6f37 test(populate): repro #8460
• 98724be test: fix tests re: #8452
• 9ce579e style: fix lint
• 3f776a4 fix(populate): support embedded discriminators with refPath when not all di...
• f27fb82 test(populate): repro #8452
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