Move files and windows

.github/workflows/build_many_linux.yml → .github/workflows/build_variants.yml

@@ -28,9 +28,11 @@ jobs:
         os: [macos-10.15, macos-11.0, windows-latest]
         gcc_v: [ 10 ] # Version of GFortran we want to use.
         exclude:
-          - os: macos-latest
+          - os: windows-latest
             python-version: '3.6'
-          - os: macos-latest
+          - os: macos-10.15
+            python-version: '3.6'
+          - os: macos-10.15
             python-version: '3.7'
 
     runs-on: ${{ matrix.os }}