Is there an existing issue for this?

• I have searched the existing issues

This issue exists in the latest npm version

• I am using the latest npm

Current Behavior

npm pack --json in the latest npm version (10.5.0) emits prepare script commands and thus making the output invalid json.
This is a breaking change from previous npm version, which broke our deploy workflows.

Expected Behavior

npm pack --json should always output valid json, as it was in the previous versions.

Steps To Reproduce

Create a package which includes a prepare script.
Run npm pack --json

Environment

• npm:
• Node.js:
• OS Name:
• System Model Name:
• npm config:

; copy and paste output from `npm config ls` here