Update stub/src/main/java/io/grpc/kotlin/ClientCalls.kt
Update stub/src/main/java/io/grpc/kotlin/ClientCalls.kt

Co-authored-by: Jesse Schalken <b1c1d8736f20db3fb6c1c66bb1455ed43909f0d8@jesseschalken.com>
grpc/grpc-kotlin,grpc/grpc-kotlin,grpc/grpc-kotlin