Dill fails to serialize context in Python 3.11 correctly

### Body There is a regression that needs investigation. One of our tests is failing only on Python 3.11 `tests/operators/test_python.py::TestPythonVirtualenvOperator::test_airflow_context` This test is part of PlainAssert suite and it has been skipped so far but after https://github.com/apache/airflow/pull/35160 the PlainAssert (having only that test) have been brought back to regular tests and it turned out that it fails for Python 3.11 The error is about dill serializing the context: ``` INFO airflow.utils.process_utils:process_utils.py:186 Output: INFO airflow.utils.process_utils:process_utils.py:190 Traceback (most recent call last): INFO airflow.utils.process_utils:process_utils.py:190 File "/tmp/venv-call7xpd4uip/script.py", line 17, in <module> INFO airflow.utils.process_utils:process_utils.py:190 arg_dict = dill.load(file) INFO airflow.utils.process_utils:process_utils.py:190 ^^^^^^^^^^^^^^^ INFO airflow.utils.process_utils:process_utils.py:190 File "/usr/local/lib/python3.11/site-packages/dill/_dill.py", line 270, in load INFO airflow.utils.process_utils:process_utils.py:190 return Unpickler(file, ignore=ignore, **kwds).load() INFO airflow.utils.process_utils:process_utils.py:190 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ INFO airflow.utils.process_utils:process_utils.py:190 File "/usr/local/lib/python3.11/site-packages/dill/_dill.py", line 472, in load INFO airflow.utils.process_utils:process_utils.py:190 obj = StockUnpickler.load(self) INFO airflow.utils.process_utils:process_utils.py:190 ^^^^^^^^^^^^^^^^^^^^^^^^^ INFO airflow.utils.process_utils:process_utils.py:190 TypeError: code() argument 13 must be str, not int ERROR airflow.models.taskinstance.TaskInstance:taskinstance.py:2612 Task failed with exception ``` And likely connected with similar issues reported by others. The way how to reproduce it: 1) Run `breeze --python 3.11` 2) In the test …