MAINT verbose testpypi publishing

Author: ogrisel

.github/workflows/publish_to_pypi.yml

@@ -118,4 +118,5 @@ jobs:
     - name: Publish distribution 📦 to TestPyPI
       uses: pypa/gh-action-pypi-publish@release/v1
       with:
+        verbose: true
         repository-url: https://test.pypi.org/legacy/