[Backport 2024.1] fix(hydra): limit tmpfs to 256m

[mergify]

since we are might be running multiple hydra commands on the same jenkins builder, and we are running into those kind of error:

docker: Error response from daemon: failed to create task for container:
failed to create shim task: OCI runtime create failed: runc create failed:
unable to start container process: error during container init:
error mounting "tmpfs" to rootfs at "/home/jenkins/.local":
create mountpoint for /home/jenkins/.local mount:
mkdirat /var/lib/docker/.../.local: file exists: unknown.

we are trying to limit the memory to try to avoid this issue

Fixes: #9645

Testing

• provision tests

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 relevant to this change (if needed)

(cherry picked from commit 9a73120)

Parent PR: #9650