chore: release keptn 2.3.0 #18310

Job	Run time
Prepare CI Run	5s
Unit Tests (lifecycle-operator, lifecycle-operator/)	5m 9s
Build Docker Image (lifecycle-operator, lifecycle-operator/)	2m 42s
Store tag of the built images	3s
Unit Tests (metrics-operator, metrics-operator/)	1m 3s
Build Docker Image (metrics-operator, metrics-operator/)	3m 13s
Unit Tests (scheduler, scheduler/)	38s
Build Docker Image (scheduler, scheduler/)	3m 0s
Build Docker Image (deno-runtime, runtimes/deno-runtime/)	29s
Unit Tests (certificate-operator, keptn-cert-manager/)	1m 27s
Build Docker Image (python-runtime, runtimes/python-runtime/)	22s
Build Docker Image (certificate-operator, keptn-cert-manager/)	2m 46s
Component Tests / Component Tests	2m 23s
Publish helm chart changes to charts repo	0s
Integration Tests Cert Manager / Run Chainsaw Tests	2m 3s
Integration Tests Allowed Namespaces / Run Chainsaw Tests	2m 54s
End to End Tests / Run E2E Tests (lifecycle-operator, lifecycle-operator/)	3m 3s
End to End Tests / Run E2E Tests (scheduler, scheduler/)	3m 17s
Integration Tests Lifecycle / Run Chainsaw Tests	9m 36s
Integration Tests Metrics / Run Chainsaw Tests	6h 0m 15s
Load Tests / Run load Tests	6m 55s
Integration Tests (gates_off, cert_manager_io_off) / Run Chainsaw Tests	14m 47s
Integration Tests (gates_off, cert_manager_io_on) / Run Chainsaw Tests	14m 11s
Integration Tests (gates_on, cert_manager_io_off) / Run Chainsaw Tests	12m 4s
	7h 32m 25s

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