Revert "build(deps): bump actions/setup-python from 4.7.0 to 4.7.1"

[mihaimaruseac]

Reverts #30

Reverting because it breaks pip package resolution: working, broken: both have

Collecting etils[array-types,enp,epath,epy,etqdm,etree]==1.5.1 (from -r slsa_for_models/install/requirements.txt (line 190))
  Using cached etils-1.5.1-py3-none-any.whl (140 kB)

in the log, but the one after the action bump is then trying to look for

Collecting etils[epath] (from array-record==0.5.0->-r slsa_for_models/install/requirements.txt (line 18))
ERROR: In --require-hashes mode, all requirements must have their versions pinned with ==. These do not:
    etils[epath] from https://files.pythonhosted.org/packages/0f/6a/d2aaebacf73d5da7126c632ec0d9dc2df99cc4bbd259bad48904a034fc1b/etils-1.5.2-py3-none-any.whl (from array-record==0.5.0->-r slsa_for_models/install/requirements.txt (line 18))

[laurentsimon]

Let's create a tracking issue for it?

[laurentsimon]

Looks like it's a problem with the formatting of requirement file.. @di have you seen this error before?

[mihaimaruseac]

Made #43 to track this and the breakage in dependency resolution from #37