Update dependency marshmallow to v3.21.3 - autoclosed

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
marshmallow (changelog)	==3.20.1 -> ==3.21.3

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Release Notes

marshmallow-code/marshmallow (marshmallow)

### [`v3.21.3`](https://togithub.com/marshmallow-code/marshmallow/compare/3.21.2...3.21.3) [Compare Source](https://togithub.com/marshmallow-code/marshmallow/compare/3.21.2...3.21.3) ### [`v3.21.2`](https://togithub.com/marshmallow-code/marshmallow/compare/3.21.1...3.21.2) [Compare Source](https://togithub.com/marshmallow-code/marshmallow/compare/3.21.1...3.21.2) ### [`v3.21.1`](https://togithub.com/marshmallow-code/marshmallow/compare/3.21.0...3.21.1) [Compare Source](https://togithub.com/marshmallow-code/marshmallow/compare/3.21.0...3.21.1) ### [`v3.21.0`](https://togithub.com/marshmallow-code/marshmallow/compare/3.20.2...3.21.0) [Compare Source](https://togithub.com/marshmallow-code/marshmallow/compare/3.20.2...3.21.0) ### [`v3.20.2`](https://togithub.com/marshmallow-code/marshmallow/compare/3.20.1...3.20.2) [Compare Source](https://togithub.com/marshmallow-code/marshmallow/compare/3.20.1...3.20.2)

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