fix CI

.github/workflows/docgen.yml

@@ -14,6 +14,8 @@ jobs:
     - uses: actions/checkout@v3
       with:
         fetch-depth: 0
+    - name: Install libudev (Linux)
+      run: sudo apt-get update && sudo apt-get install -y --no-install-recommends libudev-dev
     - name: Generate docs
       run: |
         cargo doc