Fix issue where the export CLI is not returning a 0 exit-code for failures. Closes #72

[pskrbasu]

➜  steampipe_export_aws aws_account --config 'profile="hawkeye"'
[ERROR] 1720001800681: getCallerIdentityUncached: status=failed connection_name=aws api_error="operation error STS: GetCallerIdentity, https response error StatusCode: 403, RequestID: f8961301-44a4-4cfc-beac-25455987e31d, api error InvalidClientTokenId: The security token included in the request is invalid."
[ERROR] 1720001800681: getCommonColumnsUncached: status=failed connection_name=aws region=global error="operation error STS: GetCallerIdentity, https response error StatusCode: 403, RequestID: f8961301-44a4-4cfc-beac-25455987e31d, api error InvalidClientTokenId: The security token included in the request is invalid."
[ERROR] 1720001800681: aws_account.listAccountAlias: common_data_error="operation error STS: GetCallerIdentity, https response error StatusCode: 403, RequestID: f8961301-44a4-4cfc-beac-25455987e31d, api error InvalidClientTokenId: The security token included in the request is invalid."
[WARN]  1720001800681: doList callHydrateWithRetries (aws-1720001800681) returned err operation error STS: GetCallerIdentity, https response error StatusCode: 403, RequestID: f8961301-44a4-4cfc-beac-25455987e31d, api error InvalidClientTokenId: The security token included in the request is invalid.
[WARN]  1720001800681: QueryData StreamError operation error STS: GetCallerIdentity, https response error StatusCode: 403, RequestID: f8961301-44a4-4cfc-beac-25455987e31d, api error InvalidClientTokenId: The security token included in the request is invalid. (aws-1720001800681)
[WARN]  1720001800681: streamRows execution has failed: aws-1720001800681 - calling queryCache.AbortSet (aws: operation error STS: GetCallerIdentity, https response error StatusCode: 403, RequestID: f8961301-44a4-4cfc-beac-25455987e31d, api error InvalidClientTokenId: The security token included in the request is invalid.)
[WARN]  1720001800681: queryData.streamRows returned error: aws: operation error STS: GetCallerIdentity, https response error StatusCode: 403, RequestID: f8961301-44a4-4cfc-beac-25455987e31d, api error InvalidClientTokenId: The security token included in the request is invalid.
[WARN]  1720001800681: executeForConnection aws returned error aws: operation error STS: GetCallerIdentity, https response error StatusCode: 403, RequestID: f8961301-44a4-4cfc-beac-25455987e31d, api error InvalidClientTokenId: The security token included in the request is invalid., writing to CHAN
[WARN]  1720001800681: error channel received aws: operation error STS: GetCallerIdentity, https response error StatusCode: 403, RequestID: f8961301-44a4-4cfc-beac-25455987e31d, api error InvalidClientTokenId: The security token included in the request is invalid.
[ERROR] Error receiving data from the channel: aws: operation error STS: GetCallerIdentity, https response error StatusCode: 403, RequestID: f8961301-44a4-4cfc-beac-25455987e31d, api error InvalidClientTokenId: The security token included in the request is invalid.
➜  echo $?
1