Prerequisites

• I'm using the latest version
• I've read the relevant documentation
• I've searched for existing issues
• I've checked the list of known issues
• I've read the issue reproduction guide

Reproduction url

https://stackblitz.com/edit/github-cu6wxftv?file=package.json

Reproduction access

• I've made sure the reproduction is publicly accessible

Description of the issue

knip analyzes package.json and finds --test-reporter=spec in the test script, and complains that spec cannot be resolved.

--test-reporter can refer to 3rd party packages, but it can also refer to any of the builtin reporters.