test with SAS when sasview is ready for Python >3.11

[sbillinge]

Problem

Tests will skip if there is no sasview installed allowing CI to pass. Currently, sasview 6.X is only released on pypi up to Python 3.11.

Proposed solution

When versions are released up to 3.13, add sasview back as a dependency. Maybe wrap sasview imports in a try-except if that project is not being maintained.