feat(djinit/core): bump Django version to 6.0.1

This update aligns generated projects with Django 6.0.1, providing access to the latest framework improvements and security patches.

djinit/core/config.py

@@ -5,7 +5,7 @@ Core configuration and constants for djinit.
 import sys
 
 # Django version used for project generation
-DJANGO_VERSION = "5.2"
+DJANGO_VERSION = "6.0.1"
 
 # Reserved names that cannot be used for projects or apps
 DJANGO_RESERVED = {"django", "test", "site-packages", "admin"}