lint: Add lint runner build dir and lint pycache to clean task

Author: fjahr

Makefile.am

@@ -338,7 +338,7 @@ clean-docs:
 clean-local: clean-docs
 	rm -rf coverage_percent.txt test_bitcoin.coverage/ total.coverage/ fuzz.coverage/ test/tmp/ cache/ $(OSX_APP)
 	rm -rf test/functional/__pycache__ test/functional/test_framework/__pycache__ test/cache share/rpcauth/__pycache__
-	rm -rf osx_volname dist/
+	rm -rf osx_volname dist/ test/lint/test_runner/target/ test/lint/__pycache__
 
 test-security-check:
 if TARGET_DARWIN