update ci job

Author: noajshu

.github/workflows/ci.yml

@@ -15,9 +15,14 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
   cancel-in-progress: true
 
+
 jobs:
   build:
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+
+    runs-on: ${{ matrix.os }}
 
     steps:
     - name: Checkout repository
@@ -26,11 +31,8 @@ jobs:
     - name: Set up Bazel
       uses: bazel-contrib/setup-bazel@0.14.0
       with:
-        # Avoid downloading Bazel every time.
         bazelisk-cache: true
-        # Store build cache per workflow.
         disk-cache: ${{ github.workflow }}
-        # Share repository cache between workflows.
         repository-cache: true
 
     - name: Bazel tests