feat(k8sdisallowanonymous): allow disallowing system:authenticated #1837

Job	Run time
generate	1m 40s
Require a suite.yaml file alongside every template.yaml	11s
Require a sync.yaml file and metadata.gatekeeper.sh/requires-sync-data annotation for every templ...	1m 29s
Test scripts	1m 40s
Verify assertions in suite.yaml files for cel policies	6s
Verify assertions in suite.yaml files for cel policies	17s
Verify assertions in suite.yaml files for rego policies	18s
Verify assertions in suite.yaml files for rego policies	20s
Unit test on ubuntu-latest opa v0.44.0	13s
Unit test on ubuntu-latest opa v0.57.1	13s
Integration test on Gatekeeper 3.15.1 for cel policies	7s
Unit test on macos-latest opa v0.44.0	22s
Integration test on Gatekeeper 3.15.1 for rego policies	6m 22s
Unit test on macos-latest opa v0.57.1	23s
Integration test on Gatekeeper 3.16.3 for cel policies	6m 0s
Integration test on Gatekeeper 3.16.3 for rego policies	6m 0s
	25m 41s

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