[DOP-22297] Parallel reading from JDBC sources #1211

Job	Run time
Oracle tests / Run Oracle tests	5m 6s
MySQL tests / Run MySQL tests	5m 3s
FTP tests / Run FTP tests	7m 21s
Unit tests / Run unit tests	4m 7s
Scheduler tests / Run Scheduler tests	2m 21s
Samba tests / Run Samba tests	4m 46s
WebDAV tests / Run WebDAV tests	5m 7s
Clickhouse tests / Run Clickhouse tests	5m 30s
Hive tests / Run Hive tests	4m 59s
MSSQL tests / Run MSSQL tests	5m 2s
HDFS tests / Run HDFS tests	8m 23s
SFTP tests / Run SFTP tests	4m 28s
S3 tests / Run S3 tests	8m 55s
FTPS tests / Run FTPS tests	4m 32s
Tests done	20s
	1h 16m 0s

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