fix(i18n/pl): Fix a typo in Polish translation
fix(i18n/pl): Fix a typo in Polish translation

Zarejestuj -> Zarejestruj
Fixes #2708
rsalmaso/django-allauth,rsalmaso/django-allauth,pennersr/django-allauth,pennersr/django-allauth,pennersr/django-allauth,rsalmaso/django-allauth