[PY-78960] Print import errors and exceptions when starting django_test_manage.py

[arvinext]

Background:
Pycharm uses djang_manage_test.py as the default django test running command.
However when there are issues such as local settings can't be loaded correctly, the django_manage_test.py silently swallows the reasons.

I have also created a Issue here: https://youtrack.jetbrains.com/issue/PY-78960/djangotestmanage-swallows-errors-while-importing-settings

For example: If importing the settings had an issue today, because we pass in the except section, this is the output we get

<path_to_bin>/python /Applications/PyCharm.app/Contents/plugins/python-ce/helpers/pycharm/django_test_manage.py test path_to_test
Testing started at 3:24 PM ...
There is no such settings file settings.__init__

..... Some error in downstream code start showing up here which is not often implying that there was an issue with loading the settings....

After making the changes:

Testing started at 3:30 PM ...
Exception while importing settings: No module named 'distutil'
  File "/Applications/PyCharm.app/Contents/plugins/python-ce/helpers/pycharm/django_test_manage.py", line 23, in <module>
    apps = settings.INSTALLED_APPS
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/var/lib/conda/envs/org3/lib/python3.12/site-packages/django/conf/__init__.py", line 102, in __getattr__
    self._setup(name)
  File "/var/lib/conda/envs/org3/lib/python3.12/site-packages/django/conf/__init__.py", line 89, in _setup
    self._wrapped = Settings(settings_module)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/var/lib/conda/envs/org3/lib/python3.12/site-packages/django/conf/__init__.py", line 217, in __init__
    mod = importlib.import_module(self.SETTINGS_MODULE)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/var/lib/conda/envs/org3/lib/python3.12/importlib/__init__.py", line 90, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1387, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1310, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1387, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1331, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 935, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 995, in exec_module
  File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
  File "/Users/<username>/src/org/apps/org/settings/__init__.py", line 16, in <module>
    from org.settings.local_dev import *
  File "/Users/<username>/src/org/apps/org/settings/local_dev.py", line 12, in <module>
    from org.settings.default import *
  File "/Users/<username>/src/org/apps/org/settings/default.py", line 9, in <module>
    from distutil import util

This clearly shows us that when importing settings, a library dsutil couldn't be loaded.