Remove Wagtail 4.1 from tox matrix, as it's EOL

tox.ini

@@ -1,10 +1,9 @@
 [tox]
 skipsdist = True
 usedevelop = True
-
 envlist =
-    python{3.8,3.9,3.10}-django3.2-wagtail{4.1,4.2,5.0,5.1,main}-{sqlite,postgres}
-    python{3.8,3.9,3.10,3.11}-django4.1-wagtail{4.1,4.2,5.0,5.1,main}-{sqlite,postgres}
+    python{3.8,3.9,3.10}-django3.2-wagtail{4.1,5.0,5.1,main}-{sqlite,postgres}
+    python{3.8,3.9,3.10,3.11}-django4.1-wagtail{4.1,5.0,5.1,main}-{sqlite,postgres}
     python{3.8,3.9,3.10,3.11}-django4.2-wagtail{5.0,5.1,main}-{sqlite,postgres}
 
 [gh-actions]
@@ -32,11 +31,10 @@ deps =
     coverage
 
     django3.2: Django>=3.2,<3.3
-    django4.0: Django>=4.0,<4.1
     django4.1: Django>=4.1,<4.2
+    django4.2: Django>=4.2,<5.0
 
     wagtail4.1: wagtail>=4.1,<4.2
-    wagtail4.2: wagtail>=4.1,<5.0
     wagtail5.0: wagtail>=5.0,<5.1
     wagtail5.1: wagtail>=5.1,<5.2
     wagtailmain: git+https://github.com/wagtail/wagtail.git