Bump shelf_web_socket revision
Bump shelf_web_socket revision

Change-Id: Idc84c762539e92705f733a50ccc351a4e65211be
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/173540
Auto-Submit: Ivan Inozemtsev <485d797b24cb233840f738205d28b40bd33bdaad@google.com>
Commit-Queue: David Morgan <c99f6ead588e81ca6564615e2a62f86df17041f2@google.com>
Reviewed-by: David Morgan <c99f6ead588e81ca6564615e2a62f86df17041f2@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