[py] Exclude devtools directory from type checking (#15695)

Author: cgoldberg

py/pyproject.toml

@@ -91,6 +91,7 @@ testpaths = ["test"]
 
 # mypy global options
 [tool.mypy]
+exclude = "selenium/webdriver/common/devtools"
 # The aim in future here is we would be able to turn (most) of these flags on, however the typing technical
 # debt is quite colossal right now.  For now we should maybe get everything working with the config here
 # then look at going after partially or completely untyped defs as a phase-2.