Update MediaProvider's ExoPlayer version am: 59a66c7a01 am: 6026a951c2

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/exoplayer/+/17757973

Change-Id: Id3b530c56b8b8394b2cb6a4c0103207960671a8f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>