ci(release): Fix invocation of build for sdist

Author: eddiebergman

.github/workflows/release.yml

@@ -206,7 +206,7 @@ jobs:
       - name: Build source distribution
         run: |
           python -m pip install --upgrade pip build
-          python build --sdist
+          python -m build --sdist
           echo "sdist_name=$(ls -t dist/${{ env.package-name }}-*.tar.gz | head -n 1)" >> "$GITHUB_ENV"
 
       - name: Twine check ${{ env.package-name }}