fix: Add a dynamic version attribute for the setuptools build-backe…

…nd (#188)

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.

src/scicookie/{{cookiecutter.project_slug}}/build-system/setuptools-pyproject.toml

@@ -110,6 +110,9 @@ dependencies = [
 {% endif %}
 ]
 
+[tool.setuptools.dynamic]
+version = {attr = "{{ cookiecutter.package_slug }}.__version__"}
+
 [project.urls]
 Homepage = "{{ cookiecutter.project_url }}"
 "Bug Tracker" = "{{ cookiecutter.project_url }}/issues"