chore(main): release pubsub 1.22.0 (#6012)

diff --git a/pubsub/.release-please-manifest.json b/pubsub/.release-please-manifest.json
index 685d075..e0136ac 100644
--- a/pubsub/.release-please-manifest.json
+++ b/pubsub/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-    "pubsub": "1.21.1"
+    "pubsub": "1.22.0"
 }
diff --git a/pubsub/CHANGES.md b/pubsub/CHANGES.md
index 4cbce73..3cca868 100644
--- a/pubsub/CHANGES.md
+++ b/pubsub/CHANGES.md
@@ -1,5 +1,18 @@
 # Changes
 
+## [1.22.0](https://github.com/googleapis/google-cloud-go/compare/pubsub/v1.21.1...pubsub/v1.22.0) (2022-05-31)
+
+
+### Features
+
+* **pubsub:** add BigQuery configuration for subscriptions ([6ef576e](https://github.com/googleapis/google-cloud-go/commit/6ef576e2d821d079e7b940cd5d49fe3ca64a7ba2))
+* **pubsub:** add min extension period ([#6041](https://github.com/googleapis/google-cloud-go/issues/6041)) ([f2407c7](https://github.com/googleapis/google-cloud-go/commit/f2407c7013bbfdfc0103296accc828b0be674f5d))
+
+
+### Bug Fixes
+
+* **pubsub:** disable deprecated BufferedByteLimit when using MaxOutstandingBytes ([#6009](https://github.com/googleapis/google-cloud-go/issues/6009)) ([dbfdf76](https://github.com/googleapis/google-cloud-go/commit/dbfdf762c77f9cfad637c573b06f0a49e01316f3))
+
 ### [1.21.1](https://github.com/googleapis/google-cloud-go/compare/pubsub/v1.21.0...pubsub/v1.21.1) (2022-05-04)
 
 
diff --git a/pubsub/internal/version.go b/pubsub/internal/version.go
index 670f079..eddfee0 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 = "1.21.1"
+const Version = "1.22.0"