Fixed Windows CI packaging.

Author: ashaduri

.github/workflows/windows-release.yml

@@ -19,8 +19,8 @@ jobs:
     strategy:
       matrix:
         include: [
-          { msystem: MINGW64, arch: x86_64, platform: win64 },
-          { msystem: MINGW32, arch: i686, platform: win32 }
+          { msystem: MINGW64, arch: x86_64, platform: win64, urlpath: mingw64 },
+          { msystem: MINGW32, arch: i686, platform: win32, urlpath: mingw32 }
         ]
 
     steps: