bug(util): fix browser pointer in concerto-util pkg json

[sanketshevkar]

Closes #965

This is a fix for browser pointer in concerto-util pkg json. With this we should be able to build a stable package build for concerto packages in the browser.

Author Checklist

• Ensure you provide a DCO sign-off for your commits using the --signoff option of git commit.
• Vital features and changes captured in unit and/or integration tests
• Commits messages follow AP format
• Extend the documentation, if necessary
• Merging to main from fork:branchname