Bugfix/scipy integrate

[mdtanker]

Replace scipy.integrate trapz with trapezoid

scipy.integrate trapz was renamed trapezoid and the trapz alias has now been removed. This PR replaces trapz with trapezoid.

Description

This should fix an import error when import UQpy with Scipy >= v1.14. I added v1.6 as a minimum required version for scipy since that is when trapezoid was implemented and using prior versions would cause an import error.

Related Issue

#242

Motivation and Context

Can't import UQpy and have scipy >=v1.14 installed.

How Has This Been Tested?

I didn't run any tests since it was a simple name switch and should be covered in this test.

Screenshots (if appropriate):

Types of changes

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

Go over all the following points, and put an x in all the boxes that apply.
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• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.