yarn not used when generating a resource for the first time

[philipodev]

Bug Report

Current behavior

• creating a new project using nest new and selecting yarn as package manager
• using nest g resource posts
• generate method adds @nestjs/mapped-types to package.json and installs it using npm

Input Code

new project

Expected behavior

@nestjs/mapped-types should be installed using yarn instead of npm since that's what i chose when created project.

Possible Solution

Sadly no idea.

Environment

Nest version: 7.6.0

 
For Tooling issues:
- Node version: 14.15.0  
- Platform:  Linux 

Others:
Not relevant

[jmcdo29]

Similar issue here with information on what the solution can be