Consider adding `Security considerations` section similar to `pyacp`

### Description of the modifications

PyACP has a section describing the context of possible security considerations with the library. Consider adding such a section to the PyAdditive docs.

### Useful links and references

See https://acp.docs.pyansys.com/version/stable/user_guide/security_considerations.html

Start by reading the PyACP security considerations page linked in the issue and locating the corresponding PyAdditive documentation structure. Add a comparable Security considerations section covering the library's relevant context, with the PyAdditive docs building successfully as the completion check.

Written by the indexing model from the issue text.