Replace fake_sensor_commands with 'mock_sensor_commands

[sjahr]

Fixes: [WARN] [1723039694.916396634] [mock_generic_system]: Parameter 'fake_sensor_commands' has been deprecated from usage. Use'mock_sensor_commands' instead.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 40.26%. Comparing base (743d20f) to head (91370ee). Report is 19 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #61 +/- ## ========================================== + Coverage 0.00% 40.26% +40.26% ========================================== Files 5 20 +15 Lines 352 524 +172 Branches 0 33 +33 ========================================== + Hits 0 211 +211 + Misses 352 308 -44 - Partials 0 5 +5 ``` | [Flag](https://app.codecov.io/gh/PickNikRobotics/ros2_robotiq_gripper/pull/61/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=PickNikRobotics) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/PickNikRobotics/ros2_robotiq_gripper/pull/61/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=PickNikRobotics) | `40.26% <ø> (+40.26%)` | :arrow_up: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=PickNikRobotics#carryforward-flags-in-the-pull-request-comment) to find out more.

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[sea-bass]

@sjahr BTW I reacted to these changes in my ros2_kortex PR (https://github.com/Kinovarobotics/ros2_kortex/pull/228/commits/1f873bb89d2d4255af72756127dd3c8ebb4a4b87) because it's the branch we're using in the moveit2_tutorials repo and needed this fix.