Tests: run against sphinx 4.1

.circleci/config.yml

@@ -8,7 +8,7 @@ commands:
         type: string
       sphinx-version:
         type: string
-        default: "16,17,18,20,21,22,23,24,30,31,32,33,34,35,40,latest"
+        default: "16,17,18,20,21,22,23,24,30,31,32,33,34,35,40,41,latest"
     steps:
       - checkout
       - run: pip install --user tox

tox.ini

@@ -24,6 +24,7 @@ deps =
     sphinx34: Sphinx < 3.5
     sphinx35: Sphinx < 3.6
     sphinx40: Sphinx < 4.1
+    sphinx41: Sphinx < 4.2
     sphinxlatest: Sphinx
 commands =
     pytest {posargs} tests/