Bump sse
Bump sse

Changes: https://dart.googlesource.com/sse/+log/e5cf68..814924b
Change-Id: I86efb34deeaf9190765de4bad52062a0f6e2e6a9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/171728
Reviewed-by: Ben Konyi <67ffcaedcc3dc3d87dddb9627b72dd41756b31b1@google.com>
Reviewed-by: Gary Roumanis <d5b6b5e05b98e5bbacdd1eed49204da9b1e1f2d1@google.com>
Commit-Queue: Ivan Inozemtsev <485d797b24cb233840f738205d28b40bd33bdaad@google.com>

dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk