Guid of Ph5 nightly x86_64 builds does not refresh

[dcasota]

Describe the bug

Hi Photon OS team,

The nightly builds of Ph5 use the same guid 21b41f5 since about a month ago. This only happens on x86_64 and it does not happen for Ph4.

Reproduction steps

classic make build

Expected behavior

non-repudiation of nightly builds

Additional context

No response

[dcasota]

In Ph5 and common branch, https://github.com/vmware/photon/blob/5.0/support/spec-checker/check_spec.py introduced import license_expression with ab2f44b.
Hence for the docs, it has to be added e.g. as sudo pip3 install license_expression.