Exclude transitive dependency on core for androidTest
Exclude transitive dependency on core for androidTest

androidTest of core already has the dependency on its main. Without this
exclude, gradle complains about type duplication when merging dex saying
"Type X is defined multiple times".

PiperOrigin-RevId: 302641585

amzn/exoplayer-amazon-port,google/ExoPlayer,google/ExoPlayer,androidx/media,ened/ExoPlayer,amzn/exoplayer-amazon-port,stari4ek/ExoPlayer,amzn/exoplayer-amazon-port,ened/ExoPlayer,stari4ek/ExoPlayer,androidx/media,stari4ek/ExoPlayer,google/ExoPlayer,ened/ExoPlayer,androidx/media