Scheduled monthly dependency update for April (#105)

* Update wheel from 0.38.4 to 0.40.0

* Update watchdog from 2.3.1 to 3.0.0

* Update tox from 4.4.6 to 4.4.8

* Update coverage from 7.2.1 to 7.2.2

* Update cryptography from 39.0.1 to 40.0.1

* Update pytest from 7.2.1 to 7.2.2

requirements_dev.txt

@@ -1,11 +1,11 @@
 bumpversion==0.6.0
-wheel==0.38.4
-watchdog==2.3.1
+wheel==0.40.0
+watchdog==3.0.0
 flake8==6.0.0
-tox==4.4.6
-coverage==7.2.1
+tox==4.4.8
+coverage==7.2.2
 Sphinx==6.1.3
-cryptography==39.0.1
+cryptography==40.0.1
 PyYAML==6.0
-pytest==7.2.1
+pytest==7.2.2
 pytest-runner==6.0.0