Update sphinx from 3.2.1 to 7.3.5

requirements_dev.txt

@@ -2,7 +2,7 @@ cryptography==3.1
 wheel==0.35.1
 bumpversion==0.6.0
 pip==20.2.2
-sphinx==3.2.1
+sphinx==7.3.5
 coverage==5.2.1
 watchdog==0.10.3
 flake8==3.8.3