[ENH] test on oldest and latest matlab

[Remi-Gau]

Summary by Sourcery

Update MATLAB CI test matrix to cover the oldest supported and latest available versions across all operating systems.

CI:

• Run MATLAB tests on ubuntu-latest, macos-latest, and windows-latest only.
• Adjust MATLAB version matrix to test R2021a and the new latest R2025b, removing intermediate and OS-specific combinations.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Update the MATLAB GitHub Actions test matrix to cover the oldest supported (R2021a) and latest (R2025b) MATLAB versions across current OS images, simplifying macOS entries.

File-Level Changes

Change	Details	Files
Adjust the GitHub Actions MATLAB test matrix to use current OS labels and test the oldest and newest MATLAB releases.	Replace explicit OS list including macos-13 and a special macos-14 include with a simplified os matrix using ubuntu-latest, macos-latest, and windows-latest Update MATLAB version matrix from R2021a and R2023b (plus a macOS-specific include) to R2021a and R2025b only, removing the macOS-specific override	.github/workflows/run_tests_matlab.yml

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[sourcery-ai]

Hey - I've left some high level feedback:

• By switching from explicit macos-13/macos-14 to macos-latest, you lose control over the exact macOS versions being tested; if OS-specific behavior matters, consider keeping at least one pinned macOS version alongside macos-latest to avoid surprises when the runner image updates.
• Hard-coding R2025b means this workflow will start failing as soon as it runs before that version is available; if the MATLAB action supports it, consider using a latest alias or updating the version string only once the release is actually supported.

Prompt for AI Agents

Please address the comments from this code review:

## Overall Comments
- By switching from explicit `macos-13`/`macos-14` to `macos-latest`, you lose control over the exact macOS versions being tested; if OS-specific behavior matters, consider keeping at least one pinned macOS version alongside `macos-latest` to avoid surprises when the runner image updates.
- Hard-coding `R2025b` means this workflow will start failing as soon as it runs before that version is available; if the MATLAB action supports it, consider using a `latest` alias or updating the version string only once the release is actually supported.

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