Update Framework from Jetpack.

Changes included:
* 517c1ee: Schema Migration API updates to match API council recommendations.
* 407144d: Refactor some migration helper methods to Utils class.
* 2297b3a: Add a test for migrate to a nonexistent schema.
* 16a38d0: Log the PutDocumentStats in AppSearchImpl

Bug: 178060626
Bug: 179804862
Bug: 173532925
Test: Presubmit
Change-Id: I8b879bc9a5f30f9be3ce08d07dc60f4b177fb11b