Test for more OS

Author: Onoyiza

.github/workflows/ci.yml

@@ -19,12 +19,13 @@ jobs:
         extra_args: --hook-stage manual --all-files
 
   build:
-
-    runs-on: ubuntu-latest
+    name: Build for Python ${{ matrix.python-version }} on ${{ matrix.runs-on }}
+    runs-on: ${{ matrix.runs-on }}
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10"]
+        python-version: [ "3.7", "3.8", "3.9", "3.10"]
+        runs-on: [ubuntu-latest, macos-latest, windows-latest]
 
     steps:
     - uses: actions/checkout@v2