Can't import radical.utils with python 3.11

[okilic1]

When trying to import radical.utils using python 3.11 I got the following error. I also tried with 3.9.13 and it was successful.

Output exceeds the size limit. Open the full output data in a text editor
---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
Cell In[11], line 6
      3 import signal
      4 import threading as mt
----> 6 import radical.pilot as rp
      7 import radical.utils as ru
File /opt/homebrew/lib/python3.11/site-packages/radical/pilot/__init__.py:9
      3 __license__   = "MIT"
      5 # ------------------------------------------------------------------------------
      6 # we *first* import radical.utils, so that the monkeypatching of the logger has
      7 # a chance to kick in before the logging module is pulled by any other 3rd party
      8 # module, and also to monkeypatch `os.fork()` for the `atfork` functionality
----> 9 import radical.utils as _ru
     11 # ------------------------------------------------------------------------------
     12 # constants and types
     13 from .states     import *
File /opt/homebrew/lib/python3.11/site-packages/radical/utils/__init__.py:18
     16 # import utility classes
     17 from .object_cache   import ObjectCache
---> 18 from .plugin_manager import PluginManager, PluginBase
     19 from .singleton      import Singleton
     20 from .heartbeat      import Heartbeat
...
--> 175 from inspect   import getargspec, isclass
    176 from re        import compile as regex
    177 from functools import wraps
ImportError: cannot import name 'getargspec' from 'inspect' (/opt/homebrew/Cellar/python@3.11/3.11.0/Frameworks/Python.framework/Versions/3.11/lib/python3.11/inspect.py)

[mturilli]

Add testing for Python versions in GitHub actions up to 3.11