CI: Update Workflow to no longer upload .appx files and instead .msix

Author: SternXD

.github/workflows/buildwinrt.yml

@@ -61,14 +61,14 @@ jobs:
       uses: actions/upload-artifact@v4
       with:
         name: appx-${{ matrix.configuration }}
-        path: "AppPackages\\xbsx2\\xbsx2_${{ steps.extract_version.outputs.version }}_x64_Test\\xbsx2_${{ steps.extract_version.outputs.version }}_x64.appx"
+        path: "AppPackages\\xbsx2\\xbsx2_${{ steps.extract_version.outputs.version }}_x64_Test\\xbsx2_${{ steps.extract_version.outputs.version }}_x64.msix"
 
     - name: Upload APPX file (AVX2)
       if: matrix.configuration == 'Release AVX2'
       uses: actions/upload-artifact@v4
       with:
         name: appx-${{ matrix.configuration }}
-        path: "AppPackages\\xbsx2\\xbsx2_${{ steps.extract_version.outputs.version }}_x64_Release AVX2_Test\\xbsx2_${{ steps.extract_version.outputs.version }}_x64_Release AVX2.appx"
+        path: "AppPackages\\xbsx2\\xbsx2_${{ steps.extract_version.outputs.version }}_x64_Release AVX2_Test\\xbsx2_${{ steps.extract_version.outputs.version }}_x64_Release AVX2.msix"
 
  # Publish-release:
  #   needs: build