ci: enable windows builds

Author: g4s8

.github/workflows/go.yml

@@ -6,7 +6,10 @@ name: CI
     branches: ["master"]
 jobs:
   check:
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v3