Update dependency mongoose to v5.4.19

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
mongoose	dependencies	patch	5.4.15 -> 5.4.19	homepage, source

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Release Notes

Automattic/mongoose

v5.4.19

Compare Source

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• fix(mongoose): ensure virtuals set on subdocs in global plugins get applied #​7592
• docs(tutorials): add "Working With Dates" tutorial #​7597
• docs(guide): clarify that versioning only affects array fields #​7555
• docs(model): list out all bulkWrite() options #​7550

v5.4.18

Compare Source

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• fix(document): handle nested virtuals in populated docs when parent path is projected out #​7491
• fix(model): make subclassed models handle discriminators correctly #​7547
• fix(model): remove $versionError from save options for better debug output #​7570

v5.4.17

Compare Source

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• fix(update): handle all positional operator when casting array filters #​7540
• fix(populate): handle populating nested path where top-level path is a primitive in the db #​7545
• fix(update): run update validators on array filters #​7536
• fix(document): clean modified subpaths when sorting an array #​7556
• fix(model): cast $setOnInsert correctly with nested docs #​7534
• docs: remove extra curly brace from example #​7569 kolya182

v5.4.16

Compare Source

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• fix(schema): handle nested objects with _id: false #​7524
• fix(schema): don't throw error if declaring a virtual that starts with a map path name #​7464
• fix(browser): add stubbed model() function so code that uses model doesn't throw #​7541 caub
• fix(schema): merge virtuals correctly #​7563 yoursdearboy
• docs(connections): add reconnectFailed to connection docs #​7477
• docs(index): fix typo #​7553 DenrizSusam
• refactor(schema): iterate over paths instead of depending on childSchemas #​7554

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