Bump kotlin.version from 2.0.21 to 2.1.0 (#1299) #2722

Job	Run time
build-test-event-statistics-21-	1m 35s
build-test-rest-fights-21-	4m 42s
build-test-rest-heroes-21-	2m 13s
build-test-rest-villains-21-	3m 19s
build-test-rest-narration-21-	1m 26s
build-test-rest-narration-21-azure-openai	1m 32s
build-test-grpc-locations-21-	1m 49s
build-test-ui-super-heroes-21-	1m 59s
container-build-event-statistics-21	45s
container-build-rest-fights-21	49s
native-container-build-event-statistics	4m 20s
native-build-test-event-statistics-	4m 48s
native-container-build-rest-fights	6m 28s
container-build-test-rest-heroes-21-	2m 13s
native-build-test-rest-fights-	10m 5s
container-build-test-rest-villains-21-	3m 17s
native-container-build-test-rest-heroes-	6m 19s
native-build-test-rest-heroes-	5m 35s
native-container-build-test-rest-villains-	6m 54s
container-build-test-rest-narration-21-	1m 27s
native-build-test-rest-villains-	6m 31s
container-build-test-rest-narration-21-azure-openai	1m 37s
native-container-build-test-rest-narration-	4m 31s
native-build-test-rest-narration-	4m 5s
native-container-build-test-rest-narration-azure-openai	4m 29s
container-build-test-grpc-locations-21-	1m 47s
native-build-test-rest-narration-azure-openai	4m 20s
native-container-build-test-grpc-locations-	5m 39s
container-build-test-ui-super-heroes-21-	2m 14s
native-container-build-test-ui-super-heroes-	4m 46s
native-build-test-grpc-locations-	5m 15s
native-build-test-ui-super-heroes-	4m 38s
	2h 1m 27s

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