pylint: drop usage of bad-continuation

`bad-continuation` has been removed from pylint
See pylint-dev/pylint#3571

Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>

Author: kartben

pylint.cfg

@@ -2,7 +2,7 @@
 extension-pkg-whitelist=lxml
 
 [MESSAGES CONTROL]
-disable=missing-docstring,similarities,fixme,bad-continuation
+disable=missing-docstring,similarities,fixme
 
 [REPORTS]
 reports=no