Prepare package:meta for the 2.11 dev SDKs

Bump the upper bound to allow 2.10 stable and 2.11.0 dev SDK versions.

Change-Id: I54565fcb90c18438814cc30aa04f51807043af6a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/163762
Auto-Submit: Nate Bosch <nbosch@google.com>
Commit-Queue: Jake Macdonald <jakemac@google.com>
Reviewed-by: Jake Macdonald <jakemac@google.com>

pkg/meta/CHANGELOG.md

diff --git a/pkg/meta/CHANGELOG.md b/pkg/meta/CHANGELOG.md
index f79fbff..9e27c00 100644
--- a/pkg/meta/CHANGELOG.md
+++ b/pkg/meta/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.3.0-nullsafety.3
+
+* Allow 2.10 stable and 2.11.0 dev SDK versions.
+
 ## 1.3.0-nullsafety.2
 
 * Update for the 2.10 dev sdk.

pkg/meta/pubspec.yaml

diff --git a/pkg/meta/pubspec.yaml b/pkg/meta/pubspec.yaml
index dfad765..be6237c 100644
--- a/pkg/meta/pubspec.yaml
+++ b/pkg/meta/pubspec.yaml
@@ -1,5 +1,5 @@
 name: meta
-version: 1.3.0-nullsafety.2
+version: 1.3.0-nullsafety.3
 homepage: https://github.com/dart-lang/sdk/tree/master/pkg/meta
 description: >
  This library contains the declarations of annotations that developers can use
@@ -8,4 +8,4 @@
  to provide a better user experience.
 environment:
   # This must remain a tight constraint until nnbd is stable
-  sdk: '>=2.10.0-0 <2.10.0'
+  sdk: '>=2.10.0-0 <2.11.0'