chore: add isProbabilityArray (issue #6976)

[Sakh1l]

Resolves #6976.

Description

What is the purpose of this pull request?

This pull request:

• Adds a new isProbabilityArray function under @stdlib/assert that returns true if and only if the input is an array of numbers between 0 and 1 (inclusive).
• Includes unit tests covering valid probability arrays, out-of-range values, and non-array inputs.
• Follows the existing code style and project conventions for “is-XXXArray” utilities.

Related Issues

Does this pull request have any related issues?

This pull request:

• resolves Fix JavaScript lint errors #6976

Questions

Any questions for reviewers of this pull request?

No.

Other

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No.

Checklist

Please ensure the following tasks are completed before submitting this pull request.

• Read, understood, and followed the contributing guidelines.

---

@stdlib-js/reviewers

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Coverage Report

Package	Statements	Branches	Functions	Lines
assert/is-probability-array	$\color{green}27/27$ $\color{green}+100.00\%$	$\color{green}9/9$ $\color{green}+100.00\%$	$\color{green}2/2$ $\color{green}+100.00\%$	$\color{green}27/27$ $\color{green}+100.00\%$

The above coverage report was generated for the changes in this PR.

[Sakh1l]

@stdlib-js/reviewers please assign this to me.

[kgryte]

@Sakh1l Thank you for your interest in stdlib. However, 1) your proposed changes do not actually address #6976 and 2) we already have an implementation for @stdlib/assert/is-probability-array, so I am not sure what your goal is. Lastly, none of your proposed changes follow project conventions. As such, I am closing this PR.

If you are interested in contributing, I suggest finding a different issue and actually making the desired changes. Cheers.