publish to TestPyPI when the workflow is triggered from a fork

Author: BerndDoser

.github/workflows/release.yml

@@ -20,5 +20,9 @@ jobs:
       - uses: actions/checkout@v4
       - uses: astral-sh/setup-uv@v6.1.0
       - run: uv build
-      # - run: uv publish --trusted-publishing always --index testpypi
-      - run: uv publish --trusted-publishing always
+      - name: Publish to TestPyPI
+        if: github.repository != 'Spherinator/Spherinator'
+        run: uv publish --trusted-publishing always --index testpypi
+      - name: Publish to PyPI
+        if: github.repository == 'Spherinator/Spherinator'
+        run: uv publish --trusted-publishing always