Please update class-transformer dependency to the latest version

Hello!

Thank you for this great library!

However, right now it requires class-transformer@0.3.1 (exact version 0.3.1) as a peer dependency. This prevents my project from using the latest version of the class-transformer (which is 0.4.0).

This generates the following error on npm install:

npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR! 
npm ERR! While resolving: @acme/project
npm ERR! Found: class-transformer@0.4.0
npm ERR! node_modules/class-transformer
npm ERR!   class-transformer@"0.4.0" from the root project
npm ERR! 
npm ERR! Could not resolve dependency:
npm ERR! peer class-transformer@"^0.3.1" from routing-controllers@0.9.0
npm ERR! node_modules/routing-controllers
npm ERR!   routing-controllers@"0.9.0" from the root project
npm ERR! 
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.

Would you be so kind to update class-transformer dependency to the latest version?

Thanks!

[slavafomin]

The same issue is with class-validator.

Also, it would be much easy to avoid these kind of issues if you would switch to a stable semver range (major version > 0) because it would allow to match dependencies in a more relaxed manner.

[SandraShklyaeva]

Dependency update sounds even more urgent because of the latest security vulnerability fixes for the following packages: class-validator => 0.13.2 (changelog) class-transformer => 0.5.0 (changelog)