chore(main): release pubsub 1.23.0 (#6246)

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
diff --git a/pubsub/.release-please-manifest.json b/pubsub/.release-please-manifest.json
index b4105fd..9104e6c 100644
--- a/pubsub/.release-please-manifest.json
+++ b/pubsub/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-    "pubsub": "1.22.2"
+    "pubsub": "1.23.0"
 }
diff --git a/pubsub/CHANGES.md b/pubsub/CHANGES.md
index 3392c92..f5eca79 100644
--- a/pubsub/CHANGES.md
+++ b/pubsub/CHANGES.md
@@ -1,5 +1,13 @@
 # Changes
 
+## [1.23.0](https://github.com/googleapis/google-cloud-go/compare/pubsub/v1.22.2...pubsub/v1.23.0) (2022-06-23)
+
+
+### Features
+
+* **pubsub:** report publisher outstanding metrics ([#6187](https://github.com/googleapis/google-cloud-go/issues/6187)) ([cc1528b](https://github.com/googleapis/google-cloud-go/commit/cc1528b2bfebbb48d49bcacd639abf2cf3468c96))
+* **pubsub:** support bigquery subscriptions ([#6119](https://github.com/googleapis/google-cloud-go/issues/6119)) ([81f704a](https://github.com/googleapis/google-cloud-go/commit/81f704a2cdeece8f73d7c09eae730a905afdb870))
+
 ## [1.22.2](https://github.com/googleapis/google-cloud-go/compare/pubsub/v1.22.1...pubsub/v1.22.2) (2022-06-03)
 
 
diff --git a/pubsub/internal/version.go b/pubsub/internal/version.go
index f34a85d..6395537 100644
--- a/pubsub/internal/version.go
+++ b/pubsub/internal/version.go
@@ -15,4 +15,4 @@
 package internal
 
 // Version is the current tagged release of the library.
-const Version = "1.22.2"
+const Version = "1.23.0"