[16.0] datev_import_csv_dtvf semicolon as separator issue

[tv-openbig]

File import with semicolon as field seperator leads to an error message

Module

datev_import_csv_dtvf

Describe the bug

Import of a file with filed separator "," works.
With separator ";" i get an error.

To Reproduce

Take the example file "datev_export.csv" and download it.
Install a german localisation with l10n_de_skr03 module installed.
Put the value "248675,12" in the line 93 of the example file included in the module.
define at least one analytic account with areference "4811".
Save it with field separator ";"
Go to Accounting > Imort DATEV Format .csv
Upload the file
Select the journal Miscelleanous
Force the date: 31.12.2022
Put a reference "test"
Click on "Run import"

Expected behavior
Import should finish and open the account move
The error message is:

File "/opt/odoo/build/odoo/odoo/api.py", line 448, in _call_kw_multi
result = method(recs, *args, **kwargs)
File "/opt/odoo/build/addons/datev_import_csv_dtvf/wizard/import_move.py", line 55, in run_import
pivot = self.genericcsv2pivot(fileobj)
File "/opt/odoo/build/addons/datev_import_csv_dtvf/wizard/import_move.py", line 176, in genericcsv2pivot
date_str = l["date"][0:2] + "/" + l["date"][-2:] + "/" + year_str
TypeError: 'NoneType' object is not subscriptable

[github-actions]

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