Roll Flutter Engine from 1ec7b89f3a6b to 53595c937df1 (4 revisions) (#133362)

https://github.com/flutter/engine/compare/1ec7b89f3a6b...53595c937df1

2023-08-25 bdero@google.com [Impeller] Fix mask blurs and the Gaussian blur coverage hint. (flutter/engine#45079)
2023-08-25 ychris@google.com ios: remove shared_application and support app extension build (flutter/engine#44732)
2023-08-25 skia-flutter-autoroll@skia.org Roll Skia from 76672468e8d7 to 40f4e01fca40 (3 revisions) (flutter/engine#45126)
2023-08-25 skia-flutter-autoroll@skia.org Roll Fuchsia Mac SDK from 4LHUJjNlDT21v_pdT... to Qj4BGsKtF7EJssKIK... (flutter/engine#45127)

Also rolling transitive DEPS:
  fuchsia/sdk/core/mac-amd64 from 4LHUJjNlDT21 to Qj4BGsKtF7EJ

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-engine-flutter-autoroll
Please CC jimgraham@google.com,rmistry@google.com,zra@google.com on the revert to ensure that a human
is aware of the problem.

To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

bin/internal/engine.version

-1ec7b89f3a6b92dc1888724cb2a4dceda8cb1af1
+53595c937df156b932850807869f539c15042919

bin/internal/fuchsia-mac.version

-4LHUJjNlDT21v_pdTCXu00_kXfo-jPVXux859BpEX-YC
+Qj4BGsKtF7EJssKIKONF3EjBwsWNJ1LGIXWpqBMclbQC