Bump actions/upload-artifact from 3 to 4 (#205)

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]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci-cd.yml

@@ -45,7 +45,7 @@ jobs:
       - run: sphinx-build -W -n -T -b man docs build/sphinx/man
 
       - name: Upload docs as artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: Docs
           path: build/sphinx/    
@@ -109,7 +109,7 @@ jobs:
       - run: python -m build
 
       - name: Upload packages as artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: Packages
           path: dist/