try to fix test failures

Author: dholzmueller

.github/workflows/testing.yml

@@ -26,7 +26,7 @@ jobs:
         run: curl -LsSf https://github.com/astral-sh/uv/releases/latest/download/uv-installer.sh | sh
       - name: Add UV to PATH on Windows
         if: "startsWith(runner.os, 'windows')"
-        run: echo "::add-path::/c/Users/runneradmin/.local/bin"
+        run: echo "C:/Users/runneradmin/.local/bin" >> $GITHUB_PATH
       - name: Install hatch
         run: uv pip install --system hatch
       - name: Install swig