arm64 Support

[rjmayott]

Can we please get an official arm64 release? This will allow it to be added to the plugin list for the arm64 build of Notepad++ ( https://github.com/notepad-plus-plus/nppPluginList/blob/master/doc/plugin_list_arm64.md )

Thank you!

[chcg]

See e.g. artifacts for https://github.com/ashkulz/NppFTP/actions/runs/9374755429. Arm64 is already available for windows. Currently for the official releases the mingw builds are used. For mingw no arm64 support is available officially.

Maybe deployment should be shifted completely to the windows build or at least add a deployment step for the arm64 artifact.

@rjmayott Do you have a ARM64 device available and could test the plugin if updated deployment is available ?