fix(hydra): improve integration with podman

[avikivity]

The script that launches hydra doesn't work with podman:

Error: crun: chown `/dev/pts/16`: Operation not permitted: OCI permission denied

It turns out the problem is passing /dev. Fix that by only passing /dev if the container engine is docker.

Testing

• did not test - should not affect anything

PR pre-checks (self review)

• I added the relevant backport labels
• I didn't leave commented-out/debugging code

Reminders

• Add New configuration option and document them (in sdcm/sct_config.py)
• Add unit tests to cover my changes (under unit-test/ folder)
• Update the Readme/doc folder relevent to this change (if needed)

[fruch]

kind of exactly the same as
#7038

[fruch]

kind of exactly the same as #7038

but whom reported it, didn't confirm it's fixing the issue for him.

[fruch]

close by #7038