- update to 4.0:
* Nepal LocalFlavor: Support for Nepal added
* Belarus localflavor
* Ghana localflavor
* New fields for existing flavors:
* Added `fr.forms.FRRNAField` models field
* Added permanent account number(PAN) field in Indian flavor.
* Added the Canadian Models fields.
* Modifications to existing flavors:
* Properly validate IBANs using BBAN to ensure invalid IBANs
cannot be entered,
* updated IBAN_SEPA_COUNTRIES and IBAN_COUNTRY_CODE_LENGTH to
latest data
* Fix typo in Marijampolė county name in LTCountySelect
* Add support for new Finnish identity codes
* CIF spanish starting with 'U' bug resolved
* Fix error code for BRPostalCodeValidator
* Fix spelling of the India state of Chhattisgarh
* Fix CURP regex for MX flavor
* Removed inconvenient word VACA from CURP_INCONVENIENT_WORDS
for MX flavor
* Other changes:
* Use 'return value' when value is in the empty_values list
* Dropped support for Django 2.2, 3.0 and 3.1.
* Dropped support for Python 3.5.
* Added support for Python 3.10 and 3.11.