Run CI on macOS and Windows

.github/workflows/ci.yml

@@ -9,17 +9,23 @@ on:
 jobs:
   build:
 
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ["3.8", "3.12"]
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: ['3.8']
 
     steps:
     - uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
     - uses: actions/checkout@v3
 
+    - name: Install make
+      if: matrix.os == 'windows-latest'
+      run: |
+        choco install make
+
     - name: Install main
       run: |
         pip install .[test]
@@ -33,6 +39,7 @@ jobs:
         make test
 
     - name: Install from dist
+      shell: bash
       run: |
         make build
         pip install dist/osam-*.tar.gz