Chore GitHub workflows: refine triggers, align naming, and improve matrices

[Borda]

This pull request updates the GitHub Actions workflows to improve CI/CD coverage and maintain consistency in Python version handling. The most important changes are grouped below:

Workflow triggers and coverage:

• Added push trigger for the main branch to both the documentation build (docs.yml) and test workflows (test.yaml), ensuring these workflows run on direct pushes as well as pull requests. [1] [2]

Python version matrix standardization:

• Updated the test workflows to use a consistent python-version matrix key instead of pythonv, and expanded the matrix in unittest.yml to test across Python versions 3.9 through 3.13. [1] [2]

Workflow naming:

• Renamed the workflow in .github/workflows/unittest.yml from "Test" to "Unittests" for clarity.

[Copilot]

Pull request overview

Updates GitHub Actions workflows to broaden CI coverage on main pushes, standardize Python matrix naming, and expand unit test version coverage.

Changes:

• Added push triggers for main to docs.yml and test.yaml.
• Standardized matrix key to python-version and updated job display names accordingly.
• Expanded unittest.yml to run against Python 3.9–3.13 with fail-fast: false.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
.github/workflows/unittest.yml	Renames workflow and adds a Python-version matrix for unit tests.
.github/workflows/test.yaml	Adds push trigger for main and renames matrix key to python-version.
.github/workflows/docs.yml	Adds push trigger for main to ensure docs build runs on direct pushes.

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[MiXaiLL76]

Hey, friend! Thanks so much for the PR!
lgtm