ci: missed errors

[Borda]

just checking since we have tests for this but all CI is 🟢
so seems we have an issue with testing, I see the error treated as a warning
python-cachier/cachier/actions/runs/11446891113/job/31847045677#step:5:219

=============================== warnings summary ===============================
tests/test_pickle_core.py::test_bad_cache_file[False]
  /opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/_pytest/threadexception.py:82: PytestUnhandledThreadExceptionWarning: Exception in thread Thread-139
  
  Traceback (most recent call last):
    File "/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/threading.py", line 932, in _bootstrap_inner
      self.run()
    File "/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/watchdog/observers/api.py", line 212, in run
      self.dispatch_events(self.event_queue)
    File "/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/watchdog/observers/api.py", line 386, in dispatch_events
      handler.dispatch(event)
    File "/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/watchdog/events.py", line 364, in dispatch
      super().dispatch(event)
    File "/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/watchdog/events.py", line [218](https://github.com/python-cachier/cachier/actions/runs/11446891113/job/31847045677#step:5:219), in dispatch
      {
    File "/home/runner/work/cachier/cachier/src/cachier/cores/pickle.py", line 67, in on_modified
      self._check_calculation()
    File "/home/runner/work/cachier/cachier/src/cachier/cores/pickle.py", line 51, in _check_calculation
      if not entry._processing:
  AttributeError: 'NoneType' object has no attribute '_processing'
  
    warnings.warn(pytest.PytestUnhandledThreadExceptionWarning(msg))

tests/test_pickle_core.py::test_delete_cache_file[False]
  /opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/_pytest/threadexception.py:82: PytestUnhandledThreadExceptionWarning: Exception in thread Thread-154
  
  Traceback (most recent call last):
    File "/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/threading.py", line 932, in _bootstrap_inner
      self.run()
    File "/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/watchdog/observers/api.py", line 212, in run
      self.dispatch_events(self.event_queue)
    File "/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/watchdog/observers/api.py", line 386, in dispatch_events
      handler.dispatch(event)
    File "/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/watchdog/events.py", line 364, in dispatch
      super().dispatch(event)
    File "/opt/hostedtoolcache/Python/3.8.18/x64/lib/python3.8/site-packages/watchdog/events.py", line 218, in dispatch
      {
    File "/home/runner/work/cachier/cachier/src/cachier/cores/pickle.py", line 67, in on_modified
      self._check_calculation()
    File "/home/runner/work/cachier/cachier/src/cachier/cores/pickle.py", line 51, in _check_calculation
      if not entry._processing:
  AttributeError: 'NoneType' object has no attribute '_processing'
  
    warnings.warn(pytest.PytestUnhandledThreadExceptionWarning(msg))

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
=================================== XPASSES ====================================

---------- coverage: platform linux, python 3.8.18-final-0 -----------
Name                            Stmts   Miss Branch BrPart  Cover   Missing
---------------------------------------------------------------------------
src/cachier/__init__.py             4      0      0      0   100%
src/cachier/__main__.py             8      8      0      0     0%   3-17
src/cachier/_types.py               4      0      0      0   100%
src/cachier/_version.py            17      2      2      1    84%   25->36, 29-32
src/cachier/config.py              65      6     12      0    92%   71-79, 110-118
src/cachier/core.py               141      9     42      2    93%   191, 268-275
src/cachier/cores/__init__.py       0      0      0      0   100%
src/cachier/cores/base.py          49      0      4      0   100%
src/cachier/cores/memory.py        56      1      8      1    97%   68
src/cachier/cores/mongo.py         61     29     10      1    46%   56-64, 68, 71-84, 87-88, 105, 112-113, 123-132, 135, 138
src/cachier/cores/pickle.py       162      3     46      1    98%   58-59, [235](https://github.com/python-cachier/cachier/actions/runs/11446891113/job/31847045677#step:5:236)
---------------------------------------------------------------------------
TOTAL                             567     58    124      6    89%
Coverage XML written to file cov.xml

=========================== short test summary info ============================
XFAIL tests/test_pickle_core.py::test_bad_cache_file[True]
XFAIL tests/test_pickle_core.py::test_delete_cache_file[True]
XPASS tests/test_pickle_core.py::test_bad_cache_file[False]
XPASS tests/test_pickle_core.py::test_delete_cache_file[False]
= 83 passed, 19 deselected, 2 xfailed, 2 xpassed, 2 warnings in 171.89s (0:02:51) =