build: modernize build configuration

- Add explicit wheel dependency to build-system requires
- Ensure release workflow explicitly builds both sdist and wheel
- Use --upgrade flag for build tool installation
- Already using pypa/build correctly (confirmed)

Part of #198: Code quality/project standards alignment

Author: dguido

.github/workflows/release.yml

@@ -20,8 +20,8 @@ jobs:
       - name: Build distributions
         run: |
           python -m pip install --upgrade pip
-          python -m pip install build
-          python -m build
+          python -m pip install --upgrade build
+          python -m build --sdist --wheel
 
       - name: Upload distributions
         uses: actions/upload-artifact@v4

pyproject.toml

@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools >= 61.0"]
+requires = ["setuptools>=61.0", "wheel"]
 build-backend = "setuptools.build_meta"
 
 [project]