ci: update build workflow to support multiple OS targets

Author: daniel-sc

.github/workflows/rust.yml

@@ -11,12 +11,21 @@ env:
 
 jobs:
   build:
-
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - target: x86_64-unknown-linux-gnu
+            os: ubuntu-latest
+          - target: x86_64-apple-darwin
+            os: macos-latest
+          - target: x86_64-pc-windows-msvc
+            os: windows-latest
+    runs-on: ${{ matrix.os }}
 
     steps:
     - uses: actions/checkout@v4
     - name: Install dependencies
+      if: matrix.os == 'ubuntu-latest'
       run: sudo apt-get update && sudo apt-get install -y libx11-dev
     - name: Build
       run: cargo build --verbose