chore(deps): update helm release keda to v2.15.0 #1900

Job	Run time
Test Selenium Grid on Kubernetes / Test K8s (v1.25.16, disabled, minikube, v3.10.3, false, true)	25m 40s
Test Selenium Grid on Kubernetes / Test K8s (v1.26.15, job, minikube, v3.11.3, true, true)	21m 7s
Test Seleium Grid on Docker / Test Docker Selenium (test, true, false, true)	11m 53s
Test Selenium Grid on Kubernetes / Test K8s (v1.27.16, deployment, minikube, v3.12.3, true, true)	20m 58s
Test Seleium Grid on Docker / Test Docker Selenium (test, false, false, true)	13m 23s
Test Selenium Grid on Kubernetes / Test K8s (v1.28.12, job_https, minikube, v3.13.3, true, true)	19m 8s
Test Seleium Grid on Docker / Test Docker Selenium (test_video, false, true, false)	15m 52s
Test Selenium Grid on Kubernetes / Test K8s (v1.29.7, job_hostname, minikube, v3.14.4, false, true)	23m 57s
Test Seleium Grid on Docker / Test Docker Selenium (test_video_dynamic_name, false, true, false)	19m 10s
Test Selenium Grid on Kubernetes / Test K8s (v1.30.3, deployment_https, minikube, v3.15.3, false, true)	31m 11s
Test Seleium Grid on Docker / Test Docker Selenium (test_node_docker, false, true, false)	21m 35s
Test Seleium Grid on Docker / Test Docker Selenium (test_parallel, false, false, false)	12m 56s
Test Seleium Grid on Docker / Test Docker Selenium (test_node_relay, false, false, false)	15m 57s
Rerun workflow when failure	0s
	4h 12m 47s

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