fix(android): remove ads files only if not used

[avencat]

This fixes the usage of ads on Android (see #3370). Since beta0, the ads specific files were excluded only if we said we wanted them to be included.

You can test it by compiling the basic example project and adding this to build.gradle file in buildScript.ext:

RNVUseExoplayerIMA = true

I also had to update the kotlinVersion variable (I've set it to 1.9.20, also in the build.gradle file).

[freeboub]

@avencat Thank you for the PR, but I think this is not the good solution
I fixed the build issue here with this patch: fa23442 See the PR: #3376

[avencat]

Yes you're absolutely right, this fixes both the build issue and a crash when launching the video! 😉 I will close this PR then! 🙂