fix(@angular/cli): don't resolve `.npmrc` from parent directories
fix(@angular/cli): don't resolve `.npmrc` from parent directories

Unlike `yarn`, `npm` doesn't resolve `.npmrc` from parent locations instead it looks in predefied locations in
- per-project config file (/path/to/my/project/.npmrc)
- per-user config file (~/.npmrc)
- global config file ($PREFIX/etc/npmrc)
- npm builtin config file (/path/to/npm/npmrc)

https://docs.npmjs.com/cli/v7/configuring-npm/npmrc#files

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