Update GCloud client from 0.2.3 to 0.2.7
Update GCloud client from 0.2.3 to 0.2.7

C0urante/kafka-connect-bigquery,mtagle/kafka-connect-bigquery,wepay/kafka-connect-bigquery,wepay/kafka-connect-bigquery,skyzyx/kafka-connect-bigquery,skyzyx/kafka-connect-bigquery,C0urante/kafka-connect-bigquery,mtagle/kafka-connect-bigquery