[PLUGIN-1830] Add PostgresErrorDetailsProvider #1156

Job	Run time
build (mysql-plugin)	59m 55s
build (postgresql-plugin)	24m 5s
build (oracle-plugin)	2h 3m 13s
build (mssql-plugin)	1h 17m 13s
build (cloudsql-mysql-plugin)	1h 13m 28s
build (cloudsql-postgresql-plugin)	6m 41s
	6h 4m 35s

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