This makes it so that the main CI workflow will only trigger if a change
is made to a code file in desktop_version/ (as the CI is only for
desktop_version/), or if the CI file itself is changed.
The CI workflow for Android will only trigger if Android-specific code
_could have_ changed. This includes all code that is definitely
Android-specific (e.g. Java files), but also C/C++ files that have
__ANDROID__ ifdefs.
Unfortunately, it's not possible to reuse the same list of paths across
two different event trigger types[1]. So we have to copy-paste here.
[1]: https://github.com/orgs/community/discussions/37645
