ci: Test on new Sphinx versions. Pin jinja2 for Sphinx<4 sphinx-doc/s…

…phinx#10291

tox.ini

@@ -1,6 +1,6 @@
 # https://pytest-cov.readthedocs.io/en/latest/tox.html
 [tox]
-envlist = clean,py-sphinx{21,22,23,24,30,31,32,33,34},report
+envlist = clean,py-sphinx{21,22,23,24,30,31,32,33,34,35,40,41,42,43,44,45},report
 
 [testenv]
 # https://coveralls-python.readthedocs.io/en/latest/usage/tox.html#github-actions
@@ -12,18 +12,25 @@ commands =
     coverage run --append --source=ocdsextensionregistry -m pytest
 deps =
     coverage
-    sphinx21: Sphinx>=2.1,<2.2
-    sphinx22: Sphinx>=2.2,<2.3
-    sphinx23: Sphinx>=2.3,<2.4
-    sphinx24: Sphinx>=2.4,<2.5
-    sphinx30: Sphinx>=3.0,<3.1
-    sphinx31: Sphinx>=3.1,<3.2
-    sphinx32: Sphinx>=3.2,<3.3
-    sphinx33: Sphinx>=3.3,<3.4
-    sphinx34: Sphinx>=3.4,<3.5
+    sphinx21: Sphinx>=2.1,<2.2,jinja2<3.1.0
+    sphinx22: Sphinx>=2.2,<2.3,jinja2<3.1.0
+    sphinx23: Sphinx>=2.3,<2.4,jinja2<3.1.0
+    sphinx24: Sphinx>=2.4,<2.5,jinja2<3.1.0
+    sphinx30: Sphinx>=3.0,<3.1,jinja2<3.1.0
+    sphinx31: Sphinx>=3.1,<3.2,jinja2<3.1.0
+    sphinx32: Sphinx>=3.2,<3.3,jinja2<3.1.0
+    sphinx33: Sphinx>=3.3,<3.4,jinja2<3.1.0
+    sphinx34: Sphinx>=3.4,<3.5,jinja2<3.1.0
+    sphinx35: Sphinx>=3.5,<3.6,jinja2<3.1.0
+    sphinx40: Sphinx>=4.0,<4.1
+    sphinx41: Sphinx>=4.1,<4.2
+    sphinx42: Sphinx>=4.2,<4.3
+    sphinx43: Sphinx>=4.3,<4.4
+    sphinx44: Sphinx>=4.4,<4.5
+    sphinx45: Sphinx>=4.5,<4.6
 depends =
-    py-sphinx{21,22,23,24,30,31,32,33,34}: clean
-    report: py-sphinx{21,22,23,24,30,31,32,33,34}
+    py-sphinx{21,22,23,24,30,31,32,33,34,35,40,41,42,43,44,45}: clean
+    report: py-sphinx{21,22,23,24,30,31,32,33,34,35,40,41,42,43,44,45}
 
 [testenv:report]
 deps = coveralls