Ingm 489 set gpo voltage level inverted logic

[GullinBustin]

Fix get_gpi_voltage_level and set_gpo_voltage_level and add IO module to doc

Fixes # INGM-489

Type of change

• [x] Add IO module to docs
• [x] Fix get_gpi_voltage_level and set_gpo_voltage_level

Tests

• [x] Add new unit tests if it applies.
• [x] Run tests.

Documentation

Please update the documentation.

• [x] Update docstrings of every function, method or class that change.
• [x] USe type hints for every function and argument.
• [x] Build documentation locally to verify changes.
• [x] Add the changes at the [Unreleased] section of the CHANGELOG.

Code formatting

• [x] Use the ruff package to format the code: ruff format ingeniamotion tests.
• [x] Use the ruff package to lint the code: ruff check ingeniamotion.

Others

• [x] Set fix version field in the Jira issue.