tests: test only on linux

Author: Ken Kundert

.github/workflows/build.yaml

@@ -8,8 +8,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        # os: [ubuntu-latest]
-        os: [ubuntu-latest, windows-latest]
+        os: [ubuntu-latest]
         python-version: ["3.6", "3.x"]
       max-parallel: 6