[PLUGIN-1831] Add CloudSQLPostgreSQLErrorDetailsProvider #1160

Job	Run time
build (mysql-plugin)	59m 40s
build (postgresql-plugin)	32m 19s
build (oracle-plugin)	2h 3m 47s
build (mssql-plugin)	1h 19m 13s
build (cloudsql-mysql-plugin)	1h 13m 31s
build (cloudsql-postgresql-plugin)	6m 28s
	6h 14m 58s

Provide feedback