[🍒] Remove test deps #1593

Job	Run time
build (oracle-plugin)	2h 5m 36s
build (cloudsql-mysql-plugin)	1h 17m 46s
build (mysql-plugin)	1h 20m 33s
build (mssql-plugin)	1h 20m 15s
build (cloudsql-postgresql-plugin)	8m 23s
build (postgresql-plugin)	34m 8s
	6h 46m 41s

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