fix: install duckdb for docs (#27)

Author: gadomski

.github/workflows/docs.yaml

@@ -20,6 +20,12 @@ jobs:
           fetch-depth: 0 # to get gh-pages
       - uses: astral-sh/setup-uv@v3
       - uses: Swatinem/rust-cache@v2
+      - name: Download libduckdb
+        run: |
+          wget https://github.com/duckdb/duckdb/releases/download/v1.1.3/libduckdb-linux-amd64.zip
+          unzip libduckdb-linux-amd64.zip -d libduckdb
+          echo "LD_LIBRARY_PATH=libduckdb" >> $GITHUB_ENV
+          echo "LIBRARY_PATH=libduckdb" >> $GITHUB_ENV
       - name: Sync
         run: uv sync
       - name: Deploy