[DOP-22139] Reset HWM when changing strategy #1201

Job	Run time
MySQL tests / Run MySQL tests	7m 3s
Hive tests / Run Hive tests	7m 29s
Oracle tests / Run Oracle tests	7m 37s
Clickhouse tests / Run Clickhouse tests	8m 13s
HDFS tests / Run HDFS tests	10m 54s
MSSQL tests / Run MSSQL tests	7m 10s
FTPS tests / Run FTPS tests	6m 52s
WebDAV tests / Run WebDAV tests	7m 9s
SFTP tests / Run SFTP tests	7m 8s
S3 tests / Run S3 tests	11m 10s
Samba tests / Run Samba tests	7m 20s
FTP tests / Run FTP tests	10m 3s
Unit tests / Run unit tests	4m 20s
Scheduler tests / Run Scheduler tests	4m 56s
Tests done	13s
	1h 47m 37s

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