Roll Dart SDK from a7bdb1c6531d to 75cde93ff4b5 (1 revision) (#34935)

diff --git a/DEPS b/DEPS
index bbefe9f..c100d0d 100644
--- a/DEPS
+++ b/DEPS
@@ -36,7 +36,7 @@
   # Dart is: https://github.com/dart-lang/sdk/blob/main/DEPS.
   # You can use //tools/dart/create_updated_flutter_deps.py to produce
   # updated revision list of existing dependencies.
-  'dart_revision': 'a7bdb1c6531d411855e04b2b4a9dcce02754817c',
+  'dart_revision': '75cde93ff4b5ec30b5dbdeae2601e6db352fa32d',
 
   # WARNING: DO NOT EDIT MANUALLY
   # The lines between blank lines above and below are generated by a script. See create_updated_flutter_deps.py