[BUG] getting a `Failed to read _auth from ~/.npmrc` with Node v20

🐛 Bug Report:

Describe the bug

When running openapi-fetch or other openapi commands, I get the following error:

Failed to read _auth from ~/.npmrc

My .npmrc file has the newer _auth syntax, which is how it is configured on NodeJS v20:

//registry.npmjs.org/:_auth=<auth_token>

Feels like openapi-generator is not supporting the newer _auth syntax for NodeJS v20?

If I run it with NodeJS v16 and the old _auth=<auth_token> syntax, works as expected

Steps to Reproduce

this is a redacted screenshot of my .npmrc file

this is a redacted screenshot of the openapi-fetch execution through an npm script

Expected behavior

when running openapi commands like openapi-fetch via npm, it should be getting the _auth information on .npmrc config file, which is valid syntax for NodeJS v20

Screenshots

Submitted on Steps to reproduce

Operation System (please complete the following information):

• OS: macOS
• Version 15.3.1

Package System (please complete the following information):

• node: v20.18.3
• npm: v10.8.2
• openapitools/openapi-generator-cli: ^2.16.3