Fix CI: install libdbus-1-dev for keyring crate on Linux

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

Author: yshing

.github/workflows/ci.yml

@@ -10,6 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
+      - run: sudo apt-get install -y libdbus-1-dev
       - uses: actions/cache@v4
         with:
           path: |