Changes

OBS: fix python 3.12 compat

Fix for:

  File "/home/user/code/osmo-dev/src/osmo-ci/scripts/obs/lib/__init__.py", line 112, in check_required_programs
    if not importlib.find_loader(module):
           ^^^^^^^^^^^^^^^^^^^^^
AttributeError: module 'importlib' has no attribute 'find_loader

Change-Id: I6430c2c4f75c8408d00305e1a1f0a64600eb086c