Numpy 2,0 support

[jreadey]

Changes:

• Updates to support numpy 2.0
• Moved base image to python 3.12
• Moved to importlib_resources to access config.yml
• Removed support for Python 3.8

[mattjala]

The python 3.12 workflows are failing due to an import error:

________________ ERROR collecting tests/unit/chunk_util_test.py ________________
ImportError while importing test module '/home/runner/work/hsds/hsds/tests/unit/chunk_util_test.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/opt/hostedtoolcache/Python/3.12.6/x64/lib/python3.12/importlib/__init__.py:90: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
tests/unit/chunk_util_test.py:18: in <module>
    from hsds.util.dsetUtil import getHyperslabSelection
hsds/util/dsetUtil.py:16: in <module>
    from .. import hsds_logger as log
hsds/hsds_logger.py:19: in <module>
    from .util.domainUtil import getDomainFromRequest
hsds/util/domainUtil.py:17: in <module>
    from .. import config
hsds/config.py:15: in <module>
    from pkg_resources import resource_filename
E   ModuleNotFoundError: No module named 'pkg_resources'

Looks like something became deprecated - maybe try the solution here?

[jreadey]

Looks like pgk_resources was removed in Python 3.12. Have replaced with importlib_resouces.