Fix the failing command in nightly.sh (#617)
Fix the failing command in nightly.sh (#617)

* Remove the failing command in nightly.sh

* Pass in an env variable to the nightly.sh script

* Put nightly instead of
GoogleCloudDataproc/spark-bigquery-connector,GoogleCloudDataproc/spark-bigquery-connector,GoogleCloudDataproc/spark-bigquery-connector