Increment DATA_VERSION.
Increment DATA_VERSION.

https://dart-review.googlesource.com/c/sdk/+/230440 changed the
summaries content, and without the DATA_VERSION change we get an
issue with Flutter samples analysis.

Change-Id: Ie9e8245d6d254d678cd75129c88511f02f7c7b39
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/230720
Auto-Submit: Konstantin Shcheglov <09e4d7516628963212bf4aace2f97603d2b706e4@google.com>
Reviewed-by: Brian Wilkerson <1f7641b6b14c52b9163524ab8d9aabff80176f21@google.com>
Commit-Queue: Brian Wilkerson <1f7641b6b14c52b9163524ab8d9aabff80176f21@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