Bump Devtools dev version and Flutter version (flutter#8504)

flutter-candidate.txt

@@ -1 +1 @@
-7e2a06657c1c8278d477ce7d1db77c51575fdf3d
+fe71cadf1959268ca5dd545863a195d78c232b74

packages/devtools_app/lib/devtools.dart

@@ -3,10 +3,11 @@
 // found in the LICENSE file.
 
 /// The DevTools application version
-// This version should only be updated by running tools/update_version.dart
-// that updates all versions for DevTools.
-// Note: a regexp in tools/update_version.dart matches
-// the constant declaration `const version =`.
-// If you change the declaration you must also modify the regex in
-// tools/update_version.dart.
-const version = '2.41.0-dev.1';
+///
+/// This version should only be updated by running the 'dt update-version'
+/// command that updates the version here and in 'devtools_app/pubspec.yaml'.
+///
+/// Note: a regexp in the `dt update-version' command logic matches the constant
+/// declaration `const version =`. If you change the declaration you must also
+/// modify the regex in the `dt update-version' command logic.
+const version = '2.41.0-dev.2';

packages/devtools_app/pubspec.yaml

@@ -2,9 +2,9 @@ name: devtools_app
 description: Web-based performance tooling for Dart and Flutter.
 publish_to: none
 
-# Note: this version should only be updated by running tools/update_version.dart
-# that updates all versions of devtools packages (devtools_app, devtools_test).
-version: 2.41.0-dev.1
+# Note: this version should only be updated by running the 'dt update-version'
+# command that updates the version here and in 'devtools.dart'.
+version: 2.41.0-dev.2
 
 repository: https://github.com/flutter/devtools/tree/master/packages/devtools_app