[ package:vm_service ] Prep for 14.2.3 release

Change-Id: I2a861d2021553f2cc4b0dbdc2390bff4edf49f84
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/368860
Auto-Submit: Ben Konyi <bkonyi@google.com>
Reviewed-by: Derek Xu <derekx@google.com>
Commit-Queue: Derek Xu <derekx@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>

pkg/vm_service/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 14.2.3
+- An instance of RPCError is now thrown when attempting to invoke an RPC after the
+  `VmService` instance has been disposed.
+
 ## 14.2.2
 - Fixes issue where outstanding service requests were not automatically completed
   with an error when the VM service connection was closed.

pkg/vm_service/pubspec.yaml

@@ -1,5 +1,5 @@
 name: vm_service
-version: 14.2.2
+version: 14.2.3
 description: >-
   A library to communicate with a service implementing the Dart VM
   service protocol.