Steps to reproduce

In commit 3d42db4 of PR #496, I deactivated the license header check that runs as part of the GitHub style checks. See PR for more info. We need to reenable this after updating our branch from spack develop in 2025.

Error message

n/a

Information on your system

n/a

General information

• I have run spack debug report and reported the version of Spack/Python/Platform
• I have searched the issues of this repo and believe this is not a duplicate
• I have run the failing commands in debug mode and reported the output