Update PluginManager Import am: f5a781de48

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/ThemePicker/+/20519858

Change-Id: I8b0e762161d0d91e3687b8e8dfe86f7628a3f442
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>