build-bonsaiviewer-autodesk: install missing libs

CI was failing:
```
  The system library `dbus-1` required by crate `libdbus-sys` was not found.
  The file `dbus-1.pc` needs to be installed and the PKG_CONFIG_PATH environment variable must contain its parent directory.
  The PKG_CONFIG_PATH environment variable is not set.
```

.github/workflows/build-bonsaiviewer-autodesk.yml

@@ -26,6 +26,25 @@ jobs:
     steps:
       - uses: actions/checkout@v7
 
+      - name: Install system dependencies
+        run: |
+          pkgs=(
+            libdbus-1-dev
+            libx11-dev
+            libxext-dev
+            libxinerama-dev
+            libxcursor-dev
+            libxrender-dev
+            libxfixes-dev
+            libxft-dev
+            libfontconfig1-dev
+            libpango1.0-dev
+            libcairo2-dev
+            libgl1-mesa-dev
+          )
+          sudo apt-get update
+          sudo apt-get install -y "${pkgs[@]}"
+
       - uses: dtolnay/rust-toolchain@stable
 
       # cargo-target reuse across runs. Massive cold-build speedup,