Bump actions/upload-artifact from 1 to 4

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 1 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v1...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/main.yml

@@ -106,7 +106,7 @@ jobs:
         ls -la dist
     - name: Upload package
       if: github.event_name == 'push'
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v4
       with:
         name: python-packages
         path: dist
@@ -117,7 +117,7 @@ jobs:
         make html
     - name: Upload documentation
       if: github.event_name == 'push'
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v4
       with:
         name: sphinx-docs
         path: docs/_build/html