Increase the cppcheck timeout to 1200 seconds (#2484)

Signed-off-by: Alejandro Hernández Cordero <[email protected]>

Author: ahcorde

rclcpp/CMakeLists.txt

@@ -298,7 +298,7 @@ install(
 
 if(TEST cppcheck)
   # must set the property after ament_package()
-  set_tests_properties(cppcheck PROPERTIES TIMEOUT 600)
+  set_tests_properties(cppcheck PROPERTIES TIMEOUT 1200)
 endif()
 
 if(TEST cpplint)