chore(deps): update dependency pymongo to v4

Created by: renovate[bot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
pymongo	>=3.12.1,<4 -> >=4.2,<5

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Release Notes

mongodb/mongo-python-driver

v4.2.0

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Release notes: https://www.mongodb.com/community/forums/t/pymongo-4-2-0-released/176012

v4.1.1

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Release notes: https://www.mongodb.com/community/forums/t/pymongo-4-1-1-released/157895

v4.1.0

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Release notes: https://www.mongodb.com/community/forums/t/pymongo-4-1-0-released/156029

v4.0.2

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Release notes: https://www.mongodb.com/community/forums/t/pymongo-4-0-2-released/150457

v4.0.1

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Release notes: https://www.mongodb.com/community/forums/t/pymongo-4-0-1-released/135979

v4.0

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Release notes: https://www.mongodb.com/community/forums/t/pymongo-4-0-released/134677

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Configuration

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