CI: Add missing ubuntu dependencies

Author: GottaGetPaid

.github/workflows/ci.yml

@@ -21,6 +21,12 @@ jobs:
         uses: dtolnay/rust-toolchain@stable
         with:
           components: rustfmt
+
+      - name: Install Linux dependencies
+        if: runner.os == 'Linux'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libxcb1-dev libxkbcommon-dev libxkbcommon-x11-dev
       
       - name: Check formatting
         run: cargo fmt --all -- --check