chore: release keptn 2.4.0 (#3824) #18481

Job	Run time
Prepare CI Run	4s
Unit Tests (lifecycle-operator, lifecycle-operator/)	5m 3s
Unit Tests (metrics-operator, metrics-operator/)	52s
Unit Tests (certificate-operator, keptn-cert-manager/)	29s
Store tag of the built images	3s
Build Docker Image (lifecycle-operator, lifecycle-operator/)	2m 43s
Build Docker Image (metrics-operator, metrics-operator/)	3m 25s
Build Docker Image (deno-runtime, runtimes/deno-runtime/)	25s
Build Docker Image (python-runtime, runtimes/python-runtime/)	14s
Build Docker Image (certificate-operator, keptn-cert-manager/)	2m 41s
Component Tests / Component Tests	2m 19s
Publish helm chart changes to charts repo (keptn, chart)	17s
Publish helm chart changes to charts repo (keptn-lifecycle-operator, lifecycle-operator/chart)	6s
Publish helm chart changes to charts repo (keptn-metrics-operator, metrics-operator/chart)	4s
Publish helm chart changes to charts repo (keptn-cert-manager, keptn-cert-manager/chart)	6s
Integration Tests Lifecycle / Run Chainsaw Tests	10m 16s
Integration Tests Cert Manager / Run Chainsaw Tests	2m 36s
End to End Tests / Run E2E Tests (lifecycle-operator, lifecycle-operator/)	1m 56s
Integration Tests Allowed Namespaces / Run Chainsaw Tests	3m 36s
Integration Tests Metrics / Run Chainsaw Tests	3m 29s
Load Tests / Run load Tests	6m 59s
Integration Tests (cert_manager_io_off) / Run Chainsaw Tests	12m 21s
Integration Tests (cert_manager_io_on) / Run Chainsaw Tests	13m 28s
	1h 13m 32s

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