Update installation commands for dependency groups in tox.ini and main.yml

Author: p-r-a-v-i-n

.github/workflows/main.yml

@@ -60,7 +60,7 @@ jobs:
         python-version: '3.13'
 
     - name: Install dependencies
-      run: pip install -e .[documentation]
+      run: pip install . --group docs
 
     # Start mkdocs server and wait for it to be ready
     - run: mkdocs serve &

tox.ini

@@ -15,30 +15,38 @@ envdir = {toxworkdir}/venvs/{envname}
 setenv =
        PYTHONDONTWRITEBYTECODE=1
        PYTHONWARNINGS=once
+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
-       .[testing,optional]
 
 [testenv:base]
 ; Ensure optional dependencies are not required
+dependency_groups =
+       test
 deps =
-       .[testing]
 
 [testenv:dist]
 commands = python -W error::DeprecationWarning -W error::PendingDeprecationWarning runtests.py --no-pkgroot --staticfiles {posargs}
+dependency_groups =
+       test
+       optional
 deps =
-       .[testing,optional]
 
 [testenv:docs]
 skip_install = true
-commands = mkdocs build
+commands =
+       mkdocs build
+dependency_groups =
+       test
+       docs
 deps =
-       .[testing,documentation]
 
 [testenv:py312-djangomain]
 ignore_outcome = true