Update unit-tests.yml

Author: kulbachcedric

.github/workflows/unit-tests.yml

@@ -14,8 +14,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ['3.8', '3.9', '3.10']
-        os: [ubuntu-latest, macos-latest]
+        python: ['3.9', '3.10', '3.11']
+        os: [ubuntu-latest, macos-latest, windows-latest]
 
     steps:
       - uses: actions/checkout@v2