Add Windows matrix

Author: NullVoxPopuli

.github/workflows/ci.yml

@@ -23,7 +23,14 @@ jobs:
 
   test:
     name: Test
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+          - windows-latest
+
     steps:
       - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v4