Roll ICU from 43953f57b037 to 9408c6fd4a39 (6 revisions) (flutter/engine#53827)

43953f57b0..9408c6fd4a

2024-06-27 dayeung@chromium.org Add upstream patch to propagate tz error to avoid overflow
2024-06-27 dayeung@chromium.org Add upstream patch to fix ja extended year overflow bug
2024-06-26 dayeung@chromium.org Add upstream patch to remove format-overflow warning
2024-06-26 dayeung@chromium.org Add upstream patch to fix a bidi buffer bug
2024-06-17 dayeung@chromium.org Patch message pattern to avoid stack overflow
2024-06-12 ripper@google.com [icu] Expose NormalizationTest.txt for use in Fuchsia fxfs tests.

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

To file a bug in ICU: https://github.com/unicode-org/icu
To file a bug in Flutter Engine: https://github.com/flutter/flutter/issues/new/choose

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

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

DEPS

@@ -307,7 +307,7 @@ deps = {
    Var('chromium_git') + '/external/github.com/google/flatbuffers' + '@' + '0a80646371179f8a7a5c1f42c31ee1d44dcf6709',
 
   'src/flutter/third_party/icu':
-   Var('chromium_git') + '/chromium/deps/icu.git' + '@' + '43953f57b037778a1b8005564afabe214834f7bd',
+   Var('chromium_git') + '/chromium/deps/icu.git' + '@' + '9408c6fd4a39e6fef0e1c4077602e1c83b15f3fb',
 
    'src/flutter/third_party/gtest-parallel':
    Var('chromium_git') + '/external/github.com/google/gtest-parallel' + '@' + '38191e2733d7cbaeaef6a3f1a942ddeb38a2ad14',