fix(sidecar): include exception type in gRPC error description

sidecar/src/main/kotlin/dev/sanderling/sidecar/DriverService.kt

@@ -150,7 +150,6 @@ class DriverService(
             observer.onNext(block())
             observer.onCompleted()
         } catch (cause: Exception) {
-            cause.printStackTrace()
             observer.onError(io.grpc.Status.INTERNAL.withDescription(cause.toString())
                 .withCause(cause).asRuntimeException())
         }