CMFActivity: add explicit security declaration.

5 jobs for for_testrunner_1 in 0 seconds
latest
Status Job ID Name Coverage
  External
failed ERP5.CodingStyleTest-TestRunner1

07:48:52

failed ERP5.PerformanceTest-TestRunner1

03:01:16

failed ERP5.UnitTest-TestRunner1

00:26:02

failed ERP5.CodingStyleTest-TestRunner1

00:21:27

failed ERP5.PerformanceTest-TestRunner1

00:13:48