T430 bump tested python versions

[jgroehl]

Please check the following before creating the pull request (PR):

• Did you run automatic tests?
• Did you run manual tests?
• Is the code provided in the PR still backwards compatible to previous SIMPA versions?

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[Copilot]

Pull Request Overview

This PR updates the Python versions tested in the CI workflow, dropping Python 3.9 and adding Python 3.13 to the test matrix.

• Removes Python 3.9 from the CI test matrix
• Adds Python 3.13 to the CI test matrix
• Tests now run against Python 3.10, 3.11, 3.12, and 3.13

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[Copilot]

The pyproject.toml file still specifies requires-python = ">=3.9" (line 16), but Python 3.9 is no longer being tested in CI. Please either:

1. Update requires-python in pyproject.toml to ">=3.10" to match the tested versions, or
2. Keep Python 3.9 in the test matrix if the package should continue supporting it.

This ensures consistency between the package's declared Python version support and what is actually tested.

Suggested change

	python-version: ["3.10", "3.11", "3.12", "3.13"]
	python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]

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