Add testpypi code

Author: ksk-jij

.github/workflows/release.yml

@@ -45,11 +45,20 @@ jobs:
           uv pip install twine
           uv run twine check dist/*
           echo "Dry run completed. Package would be published in a release."
-      - name: Publish to PyPI
-        if: ${{github.event_name == 'release'}}
+      # - name: Publish to PyPI
+      #   if: ${{github.event_name == 'release'}}
+      #   shell: bash
+      #   env:
+      #     UV_PUBLISH_TOKEN: ${{ secrets.PYPI_API_TOKEN }}
+      #   run: |
+      #     set -eux
+      #     uv publish
+      - name: Publish to TestPyPI
+        if: ${{github.event_name == 'workflow_dispatch'}}
         shell: bash
         env:
-          UV_PUBLISH_TOKEN: ${{ secrets.PYPI_API_TOKEN }}
+          UV_PUBLISH_TOKEN: ${{ secrets.TEST_PYPI_API_TOKEN }}
+          UV_PUBLISH_URL: https://test.pypi.org/legacy/
         run: |
           set -eux
-          uv publish
+          uv publish --publish-url https://test.pypi.org/legacy/