fixing probable typo in cliref.rst

[cassiasamp]

Hi everyone, this is just a detail fix..but it might make someone who's just starting confused.

I was using Garak's help and noticed a probable typo in the interactive mode flag.

In the the docs/source/cliref.rst file, we currently have:
--interactive.py Launch garak in interactive.py mode

Considering there is no --interactive.py flag, I've changed it to:
--interactive Launch garak in interactive Python mode

Let me know if it makes sense ✌️

[github-actions]

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[cassiasamp]

I have read the DCO Document and I hereby sign the DCO

[cassiasamp]

recheck

[jmartin-tech]

Accepting as is to avoid churn.

For any future contribution, we require contributed code to come from a from a unique branch in your repository before it can be merged.

This helps protect the process, ensure users are aware of commits on the branch being considered for merge, allows for a location for more commits to be offered without mingling with other contributor changes and allows contributors to make progress while a PR is still being reviewed.