Merge pull request #259 from Jiawei0227/release-2.2

Add change log for 2.2.1 release

Author: k8s-ci-robot

CHANGELOG-2.2.md

@@ -1,3 +1,26 @@
+# Release notes for v2.2.1
+# Changelog since v2.2.0
+
+## Changes by Kind
+
+### Uncategorized
+
+- release-2.2: update release-tools ([#257](https://github.com/kubernetes-csi/external-attacher/pull/257), [@Jiawei0227](https://github.com/Jiawei0227))
+  - Build with Go 1.15
+
+## Dependencies
+
+### Added
+_Nothing has changed._
+
+### Changed
+- github.com/kubernetes-csi/csi-lib-utils: [v0.7.0 → v0.7.1](https://github.com/kubernetes-csi/csi-lib-utils/compare/v0.7.0...v0.7.1)
+
+### Removed
+_Nothing has changed._
+
+
+# Release notes for v2.2.0
 # Changelog since v2.1.0
 
 ### Bug Fixes