Fix extra curly braces

Author: TimPansino

tox.ini

@@ -128,7 +128,7 @@ envlist =
     python-framework_bottle-{py38,py39,py310,py311,py312,py313,pypy310}-bottle0012,
     python-framework_cherrypy-{py38,py39,py310,py311,py312,py313,pypy310}-CherryPylatest,
     python-framework_django-{py38,py39,py310,py311,py312,py313}-Djangolatest,
-    python-framework_django-{py39}-Django{0202,0300,0301,0302,0401},
+    python-framework_django-py39-Django{0202,0300,0301,0302,0401},
     python-framework_falcon-{py39,py310,py311,py312,py313,pypy310}-falconlatest,
     python-framework_falcon-py38-falcon0410,
     python-framework_falcon-{py39,py310,py311,py312,py313,pypy310}-falconmaster,