Use importlib.resources.files for card template path access

[s1lent4gnt]

What this does

Replace importlib.resources.path with importlib.resources.files to properly handle package resource paths without requiring context manager. This fixes the FileNotFoundError caused by incorrect context manager handling.

How it was tested

I tested it trying to record dataset in sim using this script control_sim_robot_no_env.py from https://github.com/s1lent4gnt/lerobot/blob/lilkm/joystick-control-sim-robot-no-env/lerobot/scripts/control_sim_robot_no_env.py. (NOTE: You need to make the change from this PR to check that is working.)
Using this command

python lerobot/scripts/control_sim_robot_no_env.py record \
    --robot-path lerobot/configs/robot/koch_sim.yaml \
    --fps 30 \
    --root data \
    --repo-id ${HF_USER}/moss_test \
    --warmup-time-s 1 \
    --display-cameras 0 \
    --episode-time-s 40 \
    --reset-time-s 10 \
    --num-episodes 2 \
    --push-to-hub 1 \
    --assign_rewards 1 \
    --single-task test_sim

You need a joystick/gamepad (xbox or ps5) to control the robot!

[s1lent4gnt]

Hi @Cadene, could you take a look, please?

[helper2424]

I have prepared similar fix #590

[helper2424]

It was locking us with HIL-SERL, also I have added unit tests there and avoided all warnings about the methods deprecations

[s1lent4gnt]

Thanks @helper2424! Closing in favor of #590.