Prepare for the 2.11 dev SDKs (dart-lang/stack_trace#81)

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

pkgs/stack_trace/CHANGELOG.md

diff --git a/pkgs/stack_trace/CHANGELOG.md b/pkgs/stack_trace/CHANGELOG.md
index 4729e7e..ce7935d 100644
--- a/pkgs/stack_trace/CHANGELOG.md
+++ b/pkgs/stack_trace/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.10.0-nullsafety.1
+
+* Allow 2.10 stable and 2.11.0 dev SDK versions.
+
 ## 1.10.0-nullsafety
 
 * Opt in to null safety.

pkgs/stack_trace/pubspec.yaml

diff --git a/pkgs/stack_trace/pubspec.yaml b/pkgs/stack_trace/pubspec.yaml
index 2718262..7384c79 100644
--- a/pkgs/stack_trace/pubspec.yaml
+++ b/pkgs/stack_trace/pubspec.yaml
@@ -1,11 +1,11 @@
 name: stack_trace
-version: 1.10.0-nullsafety
+version: 1.10.0-nullsafety.1
 description: A package for manipulating stack traces and printing them readably.
 homepage: https://github.com/dart-lang/stack_trace
 
 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'
 
 dependencies:
   path: '>=1.8.0-nullsafety <1.8.0'