github: publish test to pypi again. simply always use PRs

.github/workflows/publish.yaml

@@ -60,3 +60,25 @@ jobs:
         with:
           verbose: true
           print-hash: true
+
+  publish-to-test-pypi:
+    name: "Publish to Test PyPI"
+    runs-on: ubuntu-latest
+    needs: [ build ]
+    environment:
+      name: testpypi
+      url: https://pypi.org/p/pipecat-ai
+    permissions:
+      id-token: write
+    steps:
+      - name: Download wheels
+        uses: actions/download-artifact@v4
+        with:
+          name: wheels
+          path: ./dist
+      - name: Publish to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          verbose: true
+          print-hash: true
+          repository-url: https://test.pypi.org/legacy/