Roll Dart SDK from 0867cb1897b5 to 33e4b71e984b (1 revision) (#189661)

https://dart.googlesource.com/sdk.git/+log/0867cb1897b5..33e4b71e984b

2026-07-17 dart-internal-merge@dart-ci-internal.iam.gserviceaccount.com
Version 3.14.0-39.0.dev

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/dart-sdk-flutter
Please CC dart-vm-team@google.com,jsimmons@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://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

diff --git a/DEPS b/DEPS
index 858567a..b8d6675 100644
--- a/DEPS
+++ b/DEPS
@@ -56,7 +56,7 @@
   # updated revision list of existing dependencies. You will need to
   # gclient sync before and after update deps to ensure all deps are updated.
   # updated revision list of existing dependencies.
-  'dart_revision': '0867cb1897b5956e6d51787ad0a45d5e605a9284',
+  'dart_revision': '33e4b71e984b5f4e86dbd7048d58c211f16cef29',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py