Conflict with RXJS from nestjs

[Ivan Santos]

npm ERR! Found: rxjs@7.1.0
npm ERR! node_modules/rxjs
npm ERR!   rxjs@"^7.1.0" from the root project
npm ERR!
npm ERR! Could not resolve dependency:
npm ERR! peer rxjs@"^6.0.0" from @nestjs/common@7.6.18