Update Wuffs version

The primary purpose of this commit is to track upstream Wuffs more
closely.

A side effect is to pull in the Wuffs commit
https://github.com/google/wuffs/commit/ca9015bd2d41f9242462a8aafd981a897ae0ef9d
"Have std/gif replicate interlaced rows", which lessens a difference
between the old third_party/gif decoder and the new third_party/wuffs
decoder.

Bug: skia:8235
Change-Id: I8f42423e0e931ce32c49b791b325d50f83dd7eac
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/243336
Commit-Queue: Leon Scroggins <scroggo@google.com>
Reviewed-by: Leon Scroggins <scroggo@google.com>
2 files changed