Update workflows

Author: eel76-hmi

.github/workflows/windows.yml

@@ -1,8 +1,5 @@
 name: windows
 
-env:
-  OS: 'windows-2022'
-
 on:
   push:
     branches: [ "main" ]
@@ -11,7 +8,7 @@ on:
 
 jobs:
   tests:
-    runs-on: ${{ env.OS }}
+    runs-on: windows-2022
 
     steps:
     - name: Checkout
@@ -20,5 +17,5 @@ jobs:
     - name: Build and run tests
       uses: ./.github/workflows/tests.yml
       with:
-        os: ${{ env.OS }}
+        os: ${{ github.job.container.image }}
         cxx_compilers: '["cl"]'