Documentation/python: Fix tutorial for running Python

[tmedicci]

Summary

After apache/nuttx-apps#2982, there is no need to mount the modules and manually set the required environment variables: they are all set by the new Python wrapper application.

Impact

Impact on user: YES. Users don't need to mount and set the environment variables anymore. Documentation should reflect it.

Impact on build: NO.

Impact on hardware: NO.

Impact on documentation: YES. Documentation is being fixed to reflect the current procedure to run Python.

Impact on security: NO.

Impact on compatibility: NO.

Testing

Just build the documentation locally:

cd Documentation
make html

[nuttxpr]

[Experimental Bot, please feedback here]

Yes, this PR appears to meet the NuttX requirements, although the testing section could be improved.

While the PR description clearly explains the changes and their impact, the testing section only mentions building the documentation. While documentation changes are part of the PR and should be tested, this doesn't demonstrate the core functionality change: the automated mounting and environment variable setting by the Python wrapper. The testing section should include logs demonstrating the Python application running successfully before the change (showing the manual steps) and after the change (showing the automated behavior). This provides concrete evidence that the change works as intended.

[hartmannathan]

Just a minor suggestion... Otherwise, LGTM. Thanks for helping to improve documentation!!