Revert "Update dependency django-sass-processor to v1.2.1"

https://github.com/jrief/django-sass-processor/issues/159

This reverts commit 8744e679.

pyproject.toml

@@ -60,7 +60,7 @@ django-any-js = "^1.1"
 django-menu-generator-ng = "^1.2.3"
 django-tables2 = "^2.1"
 django-phonenumber-field = {version = "^6.1", extras = ["phonenumbers"]}
-django-sass-processor = "1.2.1"
+django-sass-processor = "1.0"
 libsass = "^0.21.0"
 colour = "^0.1.5"
 dynaconf = {version = "^3.1", extras = ["yaml", "toml", "ini"]}