Test conda install insns on Win and Mac

Author: malfet

.github/workflows/check-quickstartmodule.yml

@@ -72,7 +72,7 @@ jobs:
         rel_type: [ "latest_stable" ]
         acc_type: [ "cuda11.1", "cuda10.2", "accnone" ]
         py_vers: [ "3.7", "3.8", "3.9" ]
-        os: ["ubuntu-18.04"]
+        os: ["ubuntu-18.04", "macos-latest", "windows-latest"]
     env:
       TEST_ACC: ${{ matrix.acc_type }}
       TEST_VER: ${{ matrix.rel_type }}