CI: test keyring feature

.github/workflows/ci.yml

@@ -17,6 +17,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest]
+        features: ["", "--features keyring-auth"]
 
     steps:
     - uses: actions/checkout@v2
@@ -38,11 +39,14 @@ jobs:
       with:
         path: target
         key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
+    - name: Install dbus
+      run: sudo apt-get install -y libdbus-1-dev
+      if: runner.os == 'Linux'
     - name: Build
-      run: cargo build --release --verbose
+      run: cargo build --release ${{ matrix.features }} --verbose
     # there are currently no automated tests
     - name: Run tests
-      run: cargo test --release --verbose
+      run: cargo test --release ${{ matrix.features }} --verbose
     - name: Archive artifacts
       uses: actions/upload-artifact@v2
       with: