chore: release storage 1.18.2 (#4994)

:robot: I have created a release \*beep\* \*boop\*
---
### [1.18.2](https://www.github.com/googleapis/google-cloud-go/compare/storage/v1.18.1...storage/v1.18.2) (2021-10-18)


### Bug Fixes

* **storage:** upgrade genproto ([#4993](https://www.github.com/googleapis/google-cloud-go/issues/4993)) ([5ca462d](https://www.github.com/googleapis/google-cloud-go/commit/5ca462d99fe851b7cddfd70108798e2fa959bdfd)), refs [#4991](https://www.github.com/googleapis/google-cloud-go/issues/4991)

This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).
diff --git a/storage/CHANGES.md b/storage/CHANGES.md
index 4153799..6c0ef20 100644
--- a/storage/CHANGES.md
+++ b/storage/CHANGES.md
@@ -1,5 +1,12 @@
 # Changes
 
+### [1.18.2](https://www.github.com/googleapis/google-cloud-go/compare/storage/v1.18.1...storage/v1.18.2) (2021-10-18)
+
+
+### Bug Fixes
+
+* **storage:** upgrade genproto ([#4993](https://www.github.com/googleapis/google-cloud-go/issues/4993)) ([5ca462d](https://www.github.com/googleapis/google-cloud-go/commit/5ca462d99fe851b7cddfd70108798e2fa959bdfd)), refs [#4991](https://www.github.com/googleapis/google-cloud-go/issues/4991)
+
 ### [1.18.1](https://www.github.com/googleapis/google-cloud-go/compare/storage/v1.18.0...storage/v1.18.1) (2021-10-14)