Bump google.golang.org/grpc from 1.67.0 to 1.67.1 #2452

Job	Run time
Unit Test (knative/serving)	9m 35s
Unit Test (knative/networking)	4m 1s
Unit Test (knative/eventing)	11m 55s
Unit Test (knative/operator)	6m 26s
Unit Test (knative/client)	6m 34s
Unit Test (knative-extensions/eventing-autoscaler-keda)	5m 15s
Unit Test (knative-extensions/eventing-ceph)	5m 4s
Unit Test (knative-extensions/eventing-github)	5m 30s
Unit Test (knative-extensions/eventing-gitlab)	5m 0s
Unit Test (knative-extensions/eventing-kafka-broker)	8m 54s
Unit Test (knative-extensions/eventing-rabbitmq)	8m 25s
Unit Test (knative-extensions/eventing-redis)	5m 23s
Unit Test (knative-extensions/kn-plugin-admin)	14m 23s
Unit Test (knative-extensions/net-certmanager)	4m 33s
Unit Test (knative-extensions/net-contour)	4m 47s
Unit Test (knative-extensions/net-istio)	5m 11s
Unit Test (knative-extensions/net-kourier)	4m 54s
	1h 55m 50s

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