Add a dynamic version attribute for the setuptools build-backend

[agriyakhetarpal]

Pull Request description

The template for the setuptools build-backend had an issue where the project version was declared as a dynamic attribute but the associated pyproject.toml file did not contain a [tool.setuptools.dynamic] TOML table. This caused the version to be returned as 0.0.0, instead of the correct version being read from the specified file.

Closes #187

How to test these changes

• Create a new package and choose setuptools, and the following code snippet

from importlib.metadata import version
print(version("mypackage"))

should return the default string (0.1.0) instead of the current (incorrect) 0.0.0.

Pull Request checklists

This PR is a:

• bug-fix
• new feature
• maintenance

About this PR:

• it includes tests.
• the tests are executed on CI.
• the tests generate log file(s) (path).
• pre-commit hooks were executed locally.
• this PR requires a project documentation update.

Author's checklist:

• I have reviewed the changes and it contains no misspelling.
• The code is well commented, especially in the parts that contain more complexity.
• New and old tests passed locally.

Additional information

N/A

Reviewer's checklist

Copy and paste this template for your review's note:

## Reviewer's Checklist

- [ ] I managed to reproduce the problem locally from the `main` branch
- [ ] I managed to test the new changes locally
- [ ] I confirm that the issues mentioned were fixed/resolved

[Saransh-cpp]

Looks good, thanks for working on this, @agriyakhetarpal! 🙂

• I managed to reproduce the problem locally from the main branch
• I managed to test the new changes locally
• I confirm that the issues mentioned were fixed/resolved

[xmnlab]

thanks for working on that @agriyakhetarpal !
and thanks for the review @Saransh-cpp !

[github-actions]

🎉 This PR is included in version 0.6.3 🎉

The release is available on:

• 0.6.3
• GitHub release

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