[ci] Fix windows arm64 label

Author: serge-sans-paille

.github/workflows/windows.yml

@@ -93,7 +93,7 @@ jobs:
           cd _build && ./test/test_xsimd
 
   build-windows-arm64:
-    name: 'mingw arm64'
+    name: 'MSVC arm64'
     defaults:
       run:
         shell: bash {0}