slo

fix broken metric `ydb_go_sdk_ydb_database_sql_conns` #3053

Job	Run time
Run YDB SLO Tests (database_sql_legacy, database-sql-legacy, ./database/sql/legacy, database/sql/...	2m 4s
Run YDB SLO Tests (database_sql_propose, database-sql-propose, ./database/sql/propose, database/s...	1m 52s
Run YDB SLO Tests (gorm_propose, gorm-propose, ./gorm/propose, gorm/propose)	59s
Run YDB SLO Tests (gorm_legacy, gorm-legacy, ./gorm/legacy, gorm/legacy)	1m 5s
Run YDB SLO Tests (native_table, native-table, ./native/table, native/table)	1m 20s
Run YDB SLO Tests (xorm_legacy, xorm-legacy, ./xorm/legacy, xorm/legacy)	1m 19s
Run YDB SLO Tests (native_query, native-query, ./native/query, native/query)	50s
Run YDB SLO Tests (xorm_propose, xorm-propose, ./xorm/propose, xorm/propose)	1m 18s
	10m 47s

Provide feedback