fix(deps): update dependency django-imagekit to v6

Author: renovate[bot]

poetry.lock

@@ -37,7 +37,7 @@ django-guardian = "^3.0.0"
 django-health-check = { git = "https://github.com/revsys/django-health-check", rev="53f9bdc3a7acc8a577319987fef0bd3040eef4b4" }  # pragma: allowlist secret
 
 
-django-imagekit = "^5.0.0"
+django-imagekit = "^6.0.0"
 django-ipware = "^7.0.0"
 django-json-widget = "^2.0.0"
 django-oauth-toolkit = "^3.0.0"