deps: update ghcr.io/keptn/python-runtime docker tag to v1.0.3 #15072

Job	Run time
Prepare CI Run	7s
Store tag of the built images	3s
Unit Tests (lifecycle-operator, lifecycle-operator/)	1m 5s
Build Docker Image (lifecycle-operator, lifecycle-operator/)	2m 13s
Unit Tests (metrics-operator, metrics-operator/)	52s
Build Docker Image (metrics-operator, metrics-operator/)	3m 25s
Unit Tests (scheduler, scheduler/)	28s
Build Docker Image (scheduler, scheduler/)	2m 45s
Unit Tests (certificate-operator, keptn-cert-manager/)	1m 20s
Build Docker Image (deno-runtime, runtimes/deno-runtime/)	18s
Build Docker Image (python-runtime, runtimes/python-runtime/)	1m 12s
Build Docker Image (certificate-operator, keptn-cert-manager/)	2m 17s
Component Tests / Component Tests	2m 28s
Publish helm chart changes to charts repo	0s
Load Tests / Run load Tests	6m 33s
End to End Tests / Run E2E Tests (lifecycle-operator, lifecycle-operator/)	1m 49s
End to End Tests / Run E2E Tests (scheduler, scheduler/)	3m 0s
Integration Tests (gates_off, allowed_ns_off) / Run Chainsaw Tests	17m 37s
Integration Tests (gates_off, allowed_ns_on) / Run Chainsaw Tests	2m 53s
Integration Tests (gates_on, allowed_ns_off) / Run Chainsaw Tests	18m 44s
Integration Tests (gates_on, allowed_ns_on) / Run Chainsaw Tests	2m 55s
	1h 12m 4s

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