chore(main): release 0.4.0

Author: github-actions[bot]

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.4.0](https://github.com/GoogleCloudPlatform/alloydb-auth-proxy/compare/v0.3.0...v0.4.0) (2022-07-01)
+
+
+### Features
+
+* add gcloud-auth flag ([#43](https://github.com/GoogleCloudPlatform/alloydb-auth-proxy/issues/43)) ([4bfa258](https://github.com/GoogleCloudPlatform/alloydb-auth-proxy/commit/4bfa258216f7daa9e7310a28475a628d45333212))
+
 ## [0.3.0](https://github.com/GoogleCloudPlatform/alloydb-auth-proxy/compare/v0.2.0...v0.3.0) (2022-05-31)