* removed requirements txt files
* Updated Testing section from Contributing.md
* updated command to install dependencies for documentation in CI
* updated tox.ini
* build: Adopt PEP 735 for development dependency management
* Update installation commands for dependency groups in tox.ini and main.yml
* update installation command in testing section of contributing docs
* Clean up old `requirements text files` references in workflows and docs
* Removed references to `requirements.txt` in GitHub Actions workflows.
* Updated `mkdocs-deploy.yml` and `main.yml` to install dependencies using `pyproject.toml`.
* Cleaned up documentation to remove mentions of the `requirements` folder.
* Fix invalid pyproject.toml
Project's URLs should be in the [project] table
* Keep full versions in package groups
* Specify all tox deps as dependency groups
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Co-authored-by: Bruno Alla <alla.brunoo@gmail.com>
