[FEATURE] Add official support for SPM in Godot 4.7

[gumaciel]

What feature or improvement would you like to see?

After this PR is merged: godotengine/godot#116939, the plugin can have the official support of SPM

Is your feature request related to a problem? If so, please describe.

Currently, it is not possible to One-Click Run the project with AdMob or any plugin with the SPM on the export plugin

Additional context

No response

[gumaciel]

Needs to be done on poingstudios/godot-admob-plugin#205