Update androidx.fragment to 1.2.3.
Update androidx.fragment to 1.2.3.

https://developer.android.com/jetpack/androidx/releases/fragment#1.2.3

Change-Id: I57bd2337334de3faec4b2a3b73fccff3ef9bf8bc

wikimedia/apps-android-wikipedia,dbrant/apps-android-wikipedia,dbrant/apps-android-wikipedia,dbrant/apps-android-wikipedia,wikimedia/apps-android-wikipedia,wikimedia/apps-android-wikipedia,dbrant/apps-android-wikipedia,dbrant/apps-android-wikipedia,wikimedia/apps-android-wikipedia