chore: release aiplatform 1.3.0 (#5420)

diff --git a/aiplatform/CHANGES.md b/aiplatform/CHANGES.md
index 1b27488..10440f3 100644
--- a/aiplatform/CHANGES.md
+++ b/aiplatform/CHANGES.md
@@ -1,5 +1,12 @@
 # Changes
 
+## [1.3.0](https://www.github.com/googleapis/google-cloud-go/compare/aiplatform/v1.2.0...aiplatform/v1.3.0) (2022-02-03)
+
+
+### Features
+
+* **aiplatform:** add dedicated_resources to DeployedIndex message in aiplatform v1 index_endpoint.proto chore: sort imports ([6e56077](https://www.github.com/googleapis/google-cloud-go/commit/6e560776fd6e574320ce2dbad1f9eb9e22999185))
+
 ## [1.2.0](https://www.github.com/googleapis/google-cloud-go/compare/aiplatform/v1.1.1...aiplatform/v1.2.0) (2022-01-04)