Change output.json to output-metadata.json

[kpowake]

Reasons for making this change:

...for newer version of Android Studio

Links to documentation supporting these rule changes:

https://stackoverflow.com/a/63721477 https://catchconsole.com/code-example/what-is-the-modulereleaseoutputjson-generated-by-android-studio

If this is a new template:

• Link to application or project’s homepage: no