cicd: failure to upload is an error now.

.ci/release.sh

@@ -8,5 +8,6 @@ VERSION=${_version#'v'} # remove prefixed 'v' if any
 cp pyproject.toml /tmp/pyproject.toml.1
 poetry version ${VERSION}
 poetry build
-poetry run twine upload dist/*.whl -u __token__ -p $BITIA_PYPI_TOKEN || echo "Failed to upload"
+poetry add twine
+poetry run twine upload dist/*.whl -u __token__ -p $BITIA_PYPI_TOKEN
 mv /tmp/pyproject.toml.1 pyproject.toml