Specify all tox deps as dependency groups

pyproject.toml

@@ -75,6 +75,12 @@ optional = [
   "pygments~=2.17.0",
   "pyyaml>=5.3.1,<5.4",
 ]
+django42 = [ "django>=4.2,<5.0" ]
+django50 = [ "django>=5.0,<5.1" ]
+django51 = [ "django>=5.1,<5.2" ]
+django52 = [ "django>=5.2,<6.0" ]
+django60 = [ "django>=6.0,<6.1" ]
+djangomain = [ "django @ https://github.com/django/django/archive/main.tar.gz" ]
 
 [tool.setuptools]
 

tox.ini

@@ -18,13 +18,12 @@ setenv =
 dependency_groups =
        test
        optional
-deps =
-       django42: Django>=4.2,<5.0
-       django50: Django>=5.0,<5.1
-       django51: Django>=5.1,<5.2
-       django52: Django>=5.2,<6.0
-       django60: Django>=6.0,<6.1
-       djangomain: https://github.com/django/django/archive/main.tar.gz
+       django42: django42
+       django50: django50
+       django51: django51
+       django52: django52
+       django60: django60
+       djangomain: djangomain
 
 [testenv:base]
 ; Ensure optional dependencies are not required
@@ -37,7 +36,6 @@ commands = python -W error::DeprecationWarning -W error::PendingDeprecationWarni
 dependency_groups =
        test
        optional
-deps =
 
 [testenv:docs]
 skip_install = true
@@ -46,7 +44,6 @@ commands =
 dependency_groups =
        test
        docs
-deps =
 
 [testenv:py312-djangomain]
 ignore_outcome = true