Add more MinGW platforms

Author: jcelerier

.github/workflows/mingw.yml

@@ -7,8 +7,13 @@ jobs:
     runs-on: windows-latest
     strategy:
       matrix:
-        include:
-          - { sys: clang64, env: clang-x86_64 }
+        sys:
+          - msys2
+          - mingw64
+          - ucrt64
+          - clang64
+          - clangarm64
+
     steps:
       - name: Check out repository code
         uses: actions/checkout@v4