Continue work towards supporting upload-artifact@v4

By not naming the artifacts to be downloaded, all artifacts are downloaded.

Compression level 0 is probably faster because wheels and so forth are
compressed files.

We want to error if there are no files, that's certainly unexpected.

Author: jepler

.github/workflows/wheels.yml

@@ -27,7 +27,10 @@ jobs:
 
     - uses: actions/upload-artifact@v4
       with:
+        name: sdist
         path: dist/*.tar.gz
+        compression-level: 0
+        if-no-files-found: error
 
 
   build_wheels:
@@ -75,9 +78,12 @@ jobs:
       with:
         name: wheel-${{ matrix.os }}${{ matrix.artifact-extra }}
         path: wheelhouse/*.whl
+        compression-level: 0
+        if-no-files-found: error
 
 
   upload_all:
+    name: Upload release
     name: Upload if release
     needs: [build_wheels, build_sdist]
     runs-on: ubuntu-latest
@@ -90,7 +96,6 @@ jobs:
 
     - uses: actions/download-artifact@v4
       with:
-        name: artifact
         path: dist
 
     - uses: pypa/gh-action-pypi-publish@release/v1