Bump actions/upload-artifact from 3 to 4 (#743)

* Bump actions/upload-artifact from 3 to 4

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v3...v4)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

* Update build_wheels.yml

* unique artifact name

* download all

* add suggestions

* Update .github/workflows/build_wheels.yml

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Pavel Zwerschke <[email protected]>
Co-authored-by: Matthias Schmidtblaicher <[email protected]>
Co-authored-by: Matthias Schmidtblaicher <[email protected]>
Co-authored-by: Marc-Antoine Schmidt <[email protected]>

.github/workflows/build_wheels.yml

@@ -20,9 +20,10 @@ jobs:
         uses: pypa/[email protected]
         env:
           CIBW_ARCHS_MACOS: x86_64 arm64
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           path: ./wheelhouse/*.whl
+          name: wheels-${{ matrix.os }}
 
   build_sdist:
     name: Build source distribution
@@ -37,9 +38,10 @@ jobs:
         run: python -m pip install setuptools setuptools-scm wheel Cython numpy scikit-learn
       - name: Build sdist
         run: python setup.py sdist
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           path: dist/*.tar.gz
+          name: sdist
 
   upload_testpypi:
     if: github.event_name == 'release' && github.event.action == 'published'
@@ -51,9 +53,9 @@ jobs:
     permissions:
       id-token: write
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
-          name: artifact
+          merge-multiple: true
           path: dist
       - uses: pypa/[email protected]
         with:
@@ -69,8 +71,8 @@ jobs:
     permissions:
       id-token: write
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
-          name: artifact
           path: dist
+          merge-multiple: true
       - uses: pypa/[email protected]