Merge pull request #1957 from watchdogpolska/renovate/django-environ-0.x

Update dependency django-environ to v0.12.0

Author: PiotrIw

requirements/base.txt

@@ -5,7 +5,7 @@ Django==4.2.18
 mysqlclient==2.2.7
 
 # Configuration
-django-environ==0.11.2
+django-environ==0.12.0
 
 # Forms
 django-braces==1.16.0