Update PluginManager Import am: f5a781de48 am: 0f7f1b598a

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

Change-Id: I8e1dbae85ec612cf3cd15dfc15c388a83166242a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>