Bump Python requirement django-admin-hstore-widget to 1.2.1

requirements.txt

 # -r ./base/requirements.txt
 
 bleach==6.0.0
-django-admin-hstore-widget==1.2.0
+django-admin-hstore-widget==1.2.1
 django-cors-headers==3.14.0
 django-enumfields==2.1.1
 django-pgtrigger==4.6.0