Registers the IAM role that Amazon Inspector uses to list your EC2 instances at the start of the assessment run or when you call the PreviewAgents action.
/// You do not have required permissions to access the requested resource.
///
/// Internal server error.
///
/// Amazon Inspector cannot assume the cross-account role that it needs to list your EC2
/// instances during the assessment run.
///
/// The request was rejected because an invalid or out-of-range value was supplied for
/// an input parameter.
///