Publish the gemhardware build artifacts on cmgemos

Description

After this MR, the gemhardware build artifacts will be published on https://cmsgemos.web.cern.ch/repos/builds/

Additionally:

• Fix a missing comma in memory_access_error what() message
• Allow the GBT phases above 15 to carry user information
• Monitor the VFAT mask

Related Issue

How Has This Been Tested?

The software is still fully functional; the first part of the CI passes; the publication test has to wait for the merge.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.