build(deps): bump github.com/cloudevents/sdk-go/v2 from 2.10.1 to 2.15.2 in /tools/benchmarking_eventing #1071

Job	Run time
Build and push all images (auth-go)	1m 25s
Build and push all images (auth-python)	1m 7s
Build and push all images (auth-nodejs)	1m 17s
Build and push all images (auth-python-lambda)	1m 21s
Build and push all images (auth-nodejs-lambda)	1m 47s
Build and push all images (auth-go-lambda)	1m 24s
Test Knative Deployment (auth-go)	2m 14s
Test Docker Compose (auth-go)	1m 12s
Test Knative Deployment (auth-python)	2m 19s
Test Docker Compose (auth-python)	1m 17s
Test AWS Lambda Deployment (auth-python-lambda)	1m 4s
Test Knative Deployment (auth-nodejs)	2m 16s
Test Docker Compose (auth-nodejs)	1m 22s
Test AWS Lambda Deployment (auth-nodejs-lambda)	1m 9s
Test Knative Deployment (auth-go-tracing)	2m 17s
Test Docker Compose (auth-go-tracing)	1m 12s
Test AWS Lambda Deployment (auth-go-lambda)	1m 9s
Test Knative Deployment (auth-python-tracing)	2m 15s
Test Docker Compose (auth-python-tracing)	1m 18s
Test Knative Deployment (auth-nodejs-tracing)	2m 26s
Test Docker Compose (auth-nodejs-tracing)	1m 15s
	33m 6s

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