[DOP-22139] Reset HWM when changing strategy #1202

Job	Run time
Oracle tests / Run Oracle tests	7m 43s
MySQL tests / Run MySQL tests	7m 13s
MSSQL tests / Run MSSQL tests	7m 2s
Clickhouse tests / Run Clickhouse tests	8m 4s
FTPS tests / Run FTPS tests	7m 7s
Samba tests / Run Samba tests	6m 51s
WebDAV tests / Run WebDAV tests	7m 6s
Hive tests / Run Hive tests	7m 16s
Unit tests / Run unit tests	4m 2s
Scheduler tests / Run Scheduler tests	4m 54s
S3 tests / Run S3 tests	10m 48s
HDFS tests / Run HDFS tests	10m 53s
SFTP tests / Run SFTP tests	6m 51s
FTP tests / Run FTP tests	9m 51s
Tests done	14s
	1h 45m 55s

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