build: update the tox envs for Django 4.2 and coverage 7.x

Author: nedbat

tox.ini

@@ -14,23 +14,22 @@
 
 [tox]
 envlist =
-    py37-django{111,22,32}-cov{5,6,tip},
-    py38-django{22,32,40,41}-cov{5,6,tip},
-    py39-django{22,32,40,41}-cov{5,6,tip},
-    py310-django{32,40,41,tip}-cov{5,6,tip},
-    py311-django{41,tip}-cov{6,tip},
+    py37-django{111,22,32}-cov{6,7,tip},
+    py38-django{22,32,42}-cov{6,7,tip},
+    py39-django{22,32,42}-cov{6,7,tip},
+    py310-django{32,42,tip}-cov{6,7,tip},
+    py311-django{42,tip}-cov{6,7,tip},
     check,pkgcheck,doc
 
 [testenv]
 deps =
-    cov5: coverage>=5.0,<6.0
     cov6: coverage>=6.0,<7.0
+    cov7: coverage>=7.0,<8.0
     covtip: git+https://github.com/nedbat/coveragepy.git
     django111: Django>=1.11,<2.0
     django22: Django>=2.2,<3.0
     django32: Django>=3.2,<4.0
-    django40: Django>=4.0,<4.1
-    django41: Django>=4.1,<4.2
+    django42: Django>=4.2,<5.0
     djangotip: git+https://github.com/django/django.git
     pytest
     unittest-mixins==1.6