Fix: Added missing opts argument in MGF test cases

[akash8843]

Resolves #{{TODO: add issue number}}.

Description

What is the purpose of this pull request?

This pull request: fixes the missing opts argument in the test cases for the mgf function in the triangular distribution module. This change ensures that test cases run correctly with the required options.

Related Issues

Does this pull request have any related issues?

This pull request: Yes, this pull request resolves issue #5848.

• resolves #{{TODO: add issue number}}

Questions

Any questions for reviewers of this pull request?

No.

Other

Any other information relevant to this pull request? This may include screenshots, references, and/or implementation notes.

No.

Checklist

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

• Read, understood, and followed the contributing guidelines.

---

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Coverage Report

Package	Statements	Branches	Functions	Lines
stats/base/dists/geometric/cdf	$\color{green}291/291$ $\color{green}+100.00\%$	$\color{green}27/27$ $\color{green}+100.00\%$	$\color{green}4/4$ $\color{green}+100.00\%$	$\color{green}291/291$ $\color{green}+100.00\%$
stats/base/dists/triangular/mgf	$\color{green}380/380$ $\color{green}+100.00\%$	$\color{green}38/38$ $\color{green}+100.00\%$	$\color{green}5/5$ $\color{green}+100.00\%$	$\color{green}380/380$ $\color{green}+100.00\%$

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

[akash8843]

Hi @kgryte,

I hope you are doing well!

I have created a PR to fix added missing opts arguments in MGF test cases, I would really appreciate it if you could review my changes and provide feedback whenever you get a chance.

I’m excited to contribute to stdlib and would love to improve my PR based on your suggestions.

Thank you so much for your time and guidance!

Best regards,
Akash Shukla