start-stop-mwaa-environment - mwaa_import_data.py - variable.csv - fails for field larger than field limit

Hello guys,

In our case the resume step fails because the `mwaa_import_data` dag fails while importing `variable.csv`
This is the error:
```
[2024-05-16, 08:01:16 UTC] {{taskinstance.py:1937}} ERROR - Task failed with exception
Traceback (most recent call last):
File "/usr/local/airflow/.local/lib/python3.11/site-packages/airflow/operators/python.py", line 192, in execute
return_value = self.execute_callable()
^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/airflow/.local/lib/python3.11/site-packages/airflow/operators/python.py", line 209, in execute_callable
return self.python_callable(*self.op_args, **self.op_kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/airflow/dags/mwaa_import_data.py", line 146, in importVariable
for row in reader:
_csv.Error: field larger than field limit (131072)
```

Just FYI I've fixed it by adding these few lines of code to `mwaa_import_data.py`:
```python
import sys
import csv
maxInt = sys.maxsize

while True:
# decrease the maxInt value by factor 10
# as long as the OverflowError occurs.

try:
csv.field_size_limit(maxInt)
break
except OverflowError:
maxInt = int(maxInt/10)
```
Coming from this: https://stackoverflow.com/questions/15063936/csv-error-field-larger-than-field-limit-131072

I am not sure if this is the correct way to manage this, but for what I've seen it seems to be working fine for us.

We are on airflow `2.7.2` and I am using the latest code of this project available in `main`.