build(deps): bump actions/upload-pages-artifact from 3 to 4 (#92)

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

Author: dependabot[bot]

.github/workflows/docs.yml

@@ -43,7 +43,7 @@ jobs:
         run: uv run scripts/build_docs.py dist/docs
 
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@v4
         with:
           path: dist/docs/