Remove RUN --mount=type=bind hack for .py scripts #1717

Job	Run time
HDFS tests / Run HDFS tests	8m 27s
Clickhouse tests / Run Clickhouse tests	6m 41s
MySQL tests / Run MySQL tests	5m 23s
Hive tests / Run Hive tests	5m 28s
Unit tests / Run unit tests	2m 45s
Oracle tests / Run Oracle tests	5m 38s
SFTP tests / Run SFTP tests	4m 41s
FTPS tests / Run FTPS tests	4m 38s
Scheduler tests / Run Scheduler tests	3m 2s
S3 tests / Run S3 tests	9m 4s
Samba tests / Run Samba tests	4m 45s
MSSQL tests / Run MSSQL tests	5m 23s
WebDAV tests / Run WebDAV tests	4m 53s
FTP tests / Run FTP tests	7m 53s
Iceberg tests / Run Iceberg tests	5m 40s
Tests done	-1s
	1h 24m 20s

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