Roll third_party/wuffs to version 0.3.0-beta.8
Roll third_party/wuffs to version 0.3.0-beta.8

Update Wuffs to match the version currently used by Chromium
(updated in http://crrev.com/c/3041153)

Change-Id: Id8d74dacef69d27bce48e470b5de42ea277b61d1
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/436717
Auto-Submit: Nigel Tao <58ae08b3356928ff9c67562b4719487d54fe8348@google.com>
Commit-Queue: Leon Scroggins <995cad867ca30d6399abe011583a53547c8afea1@google.com>
Reviewed-by: Leon Scroggins <995cad867ca30d6399abe011583a53547c8afea1@google.com>

aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,google/skia,google/skia