Allow godot_export_templates_download_url to support local files path

[dev-bre]

I am building my Godot pipeline recompiling Godot and encrypting the export template. My template generation works but when I try to feed the local path of my template into the game-export step, the godot_export_templates_download_url fails since it is internally using wget which looks for a URL.

Any chance this could be extended to a pth local to the current build pipeline?

I understand this might be on lower priority, could you give me any pointer on how to implement the change maybe?

[TheDuckCow]

+1 to this, I was attempting to engine compilation optimization (stripping out features of the engine not used by the game) to drastically reduce the size of web exports, very helpful for jams). But that requires building and using a custom export template, which per above, seems like I'd have to upload and host publicly somewhere for it to work.