Another upload fix maybe.

.github/workflows/build-test-pypi.yml

@@ -32,6 +32,7 @@ jobs:
     - name: Put SDist in artifact container
       uses: actions/upload-artifact@v4
       with:
+        name: cibw-sdist
         path: dist/*.tar.gz
     - name: Check SDist metadata
       run: |
@@ -72,7 +73,7 @@ jobs:
       - name: Upload wheels to artifact container
         uses: actions/upload-artifact@v4
         with:
-          #name: cibw-wheels-${{ matrix.os }}-${{ strategy.job-index }}
+          name: cibw-wheels-${{ matrix.os }}-${{ strategy.job-index }}
           path: ./wheelhouse/*.whl
 
   upload_all:
@@ -82,8 +83,9 @@ jobs:
     - name: Get SDist and wheels from artifact container
       uses: actions/download-artifact@v4
       with:
-        name: artifact
+        pattern: cibw-*
         path: dist
+        merge-multiple: true
     - name: Publish wheels to Test PyPI
       uses: pypa/gh-action-pypi-publish@v1.10.1
       with: