e2e tests Oracle sink #1207

Job	Run time
build (mysql-plugin)	1h 18m 14s
build (postgresql-plugin)	32m 26s
build (oracle-plugin)	2h 39m 0s
build (mssql-plugin)	1h 19m 21s
build (cloudsql-mysql-plugin)	1h 18m 15s
build (cloudsql-postgresql-plugin)	6m 37s
	7h 13m 53s

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