remove windows and macos from test os

Signed-off-by: Utkarsh Srivastava <srivastavautkarsh8097@gmail.com>

Author: tangledbytes

.github/workflows/tests.yml

@@ -12,7 +12,7 @@ jobs:
   build:
     strategy:
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
+        os: [ubuntu-latest]
         node-version: [12.17.0, 14.16.0]
     runs-on: ${{ matrix.os }}
     steps: