Update watchdog from 3.0.0 to 4.0.2

Author: pyup-bot

requirements_dev.txt

@@ -2,7 +2,7 @@ pip==23.3.2
 bump2version==1.0.1
 tox==4.12.1
 wheel==0.42.0
-watchdog==3.0.0
+watchdog==4.0.2
 flake8==7.0.0
 pydata-sphinx-theme==0.15.2
 sphinx-rtd-theme==2.0.0