Fix bug in workflow

Author: NilsWinter

.github/workflows/publish.yml

@@ -38,11 +38,11 @@ jobs:
       # Decide target (PyPI vs TestPyPI) based on tag name
       - name: Publish to TestPyPI (tags ending in -test)
         if: endsWith(github.ref_name, '-test')
-        uses: pypa/gh-action-pypi-publish@v1
+        uses: pypa/gh-action-pypi-publish@release/v1
         with:
           repository-url: https://test.pypi.org/legacy/
 
       - name: Publish to PyPI (normal version tags)
         if: "!endsWith(github.ref_name, '-test')"
-        uses: pypa/gh-action-pypi-publish@v1
+        uses: pypa/gh-action-pypi-publish@release/v1
         # no repository-url needed; default is https://upload.pypi.org/legacy/