[DOP-28167] Slots on worker handlers support inheritance #1491

Job	Run time
MySQL tests / Run MySQL tests	3m 57s
Samba tests / Run Samba tests	4m 32s
HDFS tests / Run HDFS tests	8m 6s
FTP tests / Run FTP tests	7m 11s
SFTP tests / Run SFTP tests	4m 7s
FTPS tests / Run FTPS tests	4m 18s
Oracle tests / Run Oracle tests	4m 35s
Clickhouse tests / Run Clickhouse tests	5m 7s
Hive tests / Run Hive tests	4m 25s
MSSQL tests / Run MSSQL tests	4m 31s
Unit tests / Run unit tests	3m 14s
Scheduler tests / Run Scheduler tests	1m 43s
WebDAV tests / Run WebDAV tests	4m 28s
S3 tests / Run S3 tests	8m 31s
Tests done	18s
	1h 9m 3s

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