Add ignored comms for /etc/shadow access #1006

Job	Run time
build-and-push-image	2m 54s
component-tests (Test_01_BasicAlertTest)	5m 18s
component-tests (Test_02_AllAlertsFromMaliciousApp)	7m 40s
component-tests (Test_03_BasicLoadActivities)	9m 42s
component-tests (Test_06_KillProcessInTheMiddle)	4m 42s
component-tests (Test_07_RuleBindingApplyTest)	2m 0s
component-tests (Test_08_ApplicationProfilePatching)	2m 8s
component-tests (Test_10_MalwareDetectionTest)	6m 5s
component-tests (Test_11_EndpointTest)	4m 29s
component-tests (Test_12_MergingProfilesTest)	6m 8s
component-tests (Test_13_MergingNetworkNeighborhoodTest)	7m 25s
component-tests (Test_14_RulePoliciesTest)	7m 27s
component-tests (Test_15_CompletedApCannotBecomeReadyAgain)	2m 0s
	1h 7m 58s

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