fix(deps): update nest monorepo to v8.4.6

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@nestjs/common (source)	8.4.5 -> 8.4.6
@nestjs/core (source)	8.4.5 -> 8.4.6
@nestjs/platform-express (source)	8.4.5 -> 8.4.6
@nestjs/testing (source)	8.4.5 -> 8.4.6

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Release Notes

nestjs/nest

### [`v8.4.6`](https://togithub.com/nestjs/nest/compare/v8.4.5...v8.4.6) [Compare Source](https://togithub.com/nestjs/nest/compare/v8.4.5...v8.4.6)

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