refactor(c/driver/postgresql): Use GetObjectsHelper from framework to build objects #440

Job	Run time
check (macOS, adbcbigquery) / r-check	2m 33s
check (macOS, adbcdrivermanager) / r-check	1m 46s
check (macOS, adbcflightsql) / r-check	2m 13s
check (macOS, adbcpostgresql) / r-check	1m 53s
check (macOS, adbcsnowflake) / r-check	2m 47s
check (macOS, adbcsqlite) / r-check	1m 42s
check (ubuntu, adbcbigquery) / r-check	2m 36s
check (ubuntu, adbcdrivermanager) / r-check	1m 57s
check (ubuntu, adbcflightsql) / r-check	3m 15s
check (ubuntu, adbcpostgresql) / r-check	2m 34s
check (ubuntu, adbcsnowflake) / r-check	2m 53s
check (ubuntu, adbcsqlite) / r-check	1m 57s
check (windows, adbcbigquery) / r-check	5m 36s
check (windows, adbcdrivermanager) / r-check	3m 37s
check (windows, adbcflightsql) / r-check	5m 50s
check (windows, adbcpostgresql) / r-check	5m 1s
check (windows, adbcsnowflake) / r-check	7m 22s
check (windows, adbcsqlite) / r-check	3m 18s
	58m 50s

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