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]>

.github/workflows/tests.yml

@@ -98,7 +98,7 @@ jobs:
         python -m pytest --verbose --cov={self.mod_name} $MOD_DPATH ../tests
         cd ..
     - name: Upload sdist artifact
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: wheels
         path: ./wheelhouse/*.tar.gz
@@ -171,7 +171,7 @@ jobs:
       name: Codecov Upload
       with:
         file: ./coverage.xml
-    - uses: actions/upload-artifact@v3
+    - uses: actions/upload-artifact@v4
       name: Upload wheels artifact
       with:
         name: wheels