deps: update aquasecurity/trivy-action action to v0.18.0 #15090

Job	Run time
Prepare CI Run	4s
Unit Tests (lifecycle-operator, lifecycle-operator/)	1m 5s
Unit Tests (metrics-operator, metrics-operator/)	59s
Unit Tests (scheduler, scheduler/)	22s
Unit Tests (certificate-operator, keptn-cert-manager/)	1m 18s
Build Docker Image (lifecycle-operator, lifecycle-operator/)	2m 14s
Store tag of the built images	3s
Build Docker Image (metrics-operator, metrics-operator/)	3m 39s
Build Docker Image (scheduler, scheduler/)	2m 50s
Build Docker Image (deno-runtime, runtimes/deno-runtime/)	24s
Build Docker Image (python-runtime, runtimes/python-runtime/)	1m 7s
Build Docker Image (certificate-operator, keptn-cert-manager/)	2m 12s
Component Tests / Component Tests	2m 22s
Publish helm chart changes to charts repo	0s
End to End Tests / Run E2E Tests (lifecycle-operator, lifecycle-operator/)	1m 39s
Load Tests / Run load Tests	6m 48s
End to End Tests / Run E2E Tests (scheduler, scheduler/)	2m 56s
Integration Tests (gates_off, allowed_ns_on) / Run Chainsaw Tests	2m 51s
Integration Tests (gates_on, allowed_ns_off) / Run Chainsaw Tests	19m 24s
Integration Tests (gates_off, allowed_ns_off) / Run Chainsaw Tests	17m 31s
Integration Tests (gates_on, allowed_ns_on) / Run Chainsaw Tests	3m 1s
	1h 12m 49s

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