build(deps): bump @nestjs/common and @openapitools/openapi-generator-cli

Bumps [@nestjs/common](https://github.com/nestjs/nest/tree/HEAD/packages/common) to 11.0.20 and updates ancestor dependency [@openapitools/openapi-generator-cli](https://github.com/OpenAPITools/openapi-generator-cli). These dependencies need to be updated together.


Updates `@nestjs/common` from 10.3.0 to 11.0.20
- [Release notes](https://github.com/nestjs/nest/releases)
- [Commits](https://github.com/nestjs/nest/commits/v11.0.20/packages/common)

Updates `@openapitools/openapi-generator-cli` from 2.13.5 to 2.20.0
- [Release notes](https://github.com/OpenAPITools/openapi-generator-cli/releases)
- [Changelog](https://github.com/OpenAPITools/openapi-generator-cli/blob/master/.releaserc)
- [Commits](OpenAPITools/openapi-generator-cli@v2.13.5...v2.20.0)

---
updated-dependencies:
- dependency-name: "@nestjs/common"
  dependency-version: 11.0.20
  dependency-type: indirect
- dependency-name: "@openapitools/openapi-generator-cli"
  dependency-version: 2.20.0
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]