chore(deps): bump express, @nestjs/core, @nestjs/platform-express and…

… @nestjs/testing

Bumps [express](https://github.com/expressjs/express) to 4.21.0 and updates ancestor dependencies [express](https://github.com/expressjs/express), [@nestjs/core](https://github.com/nestjs/nest/tree/HEAD/packages/core), [@nestjs/platform-express](https://github.com/nestjs/nest/tree/HEAD/packages/platform-express) and [@nestjs/testing](https://github.com/nestjs/nest/tree/HEAD/packages/testing). These dependencies need to be updated together.


Updates `express` from 4.18.2 to 4.21.0
- [Release notes](https://github.com/expressjs/express/releases)
- [Changelog](https://github.com/expressjs/express/blob/4.21.0/History.md)
- [Commits](expressjs/express@4.18.2...4.21.0)

Updates `@nestjs/core` from 9.3.12 to 10.4.2
- [Release notes](https://github.com/nestjs/nest/releases)
- [Commits](https://github.com/nestjs/nest/commits/v10.4.2/packages/core)

Updates `@nestjs/platform-express` from 9.4.3 to 10.4.2
- [Release notes](https://github.com/nestjs/nest/releases)
- [Commits](https://github.com/nestjs/nest/commits/v10.4.2/packages/platform-express)

Updates `@nestjs/testing` from 9.4.2 to 10.4.2
- [Release notes](https://github.com/nestjs/nest/releases)
- [Commits](https://github.com/nestjs/nest/commits/v10.4.2/packages/testing)

---
updated-dependencies:
- dependency-name: express
  dependency-type: indirect
- dependency-name: "@nestjs/core"
  dependency-type: direct:production
- dependency-name: "@nestjs/platform-express"
  dependency-type: direct:production
- dependency-name: "@nestjs/testing"
  dependency-type: direct:development
...

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