Bump mojo_services version to 0.4.25.

BUG=

Review URL: https://codereview.chromium.org/1837923002 .
diff --git a/mojo/dart/packages/mojo_services/CHANGELOG.md b/mojo/dart/packages/mojo_services/CHANGELOG.md
index fa414f3..6f65597 100644
--- a/mojo/dart/packages/mojo_services/CHANGELOG.md
+++ b/mojo/dart/packages/mojo_services/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 0.4.25
+
+  - 19 changes: https://github.com/domokit/mojo/compare/91e87dd...21303e1
+
+  MOJO_SDK: 21303e136815a9c10321433fe6efaa4e5fc13b34
+
 ## 0.4.24
 
   - 24 changes: https://github.com/domokit/mojo/compare/68bf047...31c5037
diff --git a/mojo/dart/packages/mojo_services/pubspec.yaml b/mojo/dart/packages/mojo_services/pubspec.yaml
index 9cf7806..d41b1ec 100644
--- a/mojo/dart/packages/mojo_services/pubspec.yaml
+++ b/mojo/dart/packages/mojo_services/pubspec.yaml
@@ -4,4 +4,4 @@
 description: Generated bindings for mojo services
 homepage: https://github.com/domokit/mojo
 name: mojo_services
-version: 0.4.24
+version: 0.4.25