Modify changelog for 0.12.2 release

Signed-off-by: Robin Hahling <[email protected]>

Author: rolinh

CHANGELOG.md

@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [v0.12.2] - 2023-10-12
+[v0.12.2]: https://github.com/cilium/hubble/compare/v0.12.1...v0.12.2
+
+**Misc Changes:**
+
+* vendor: update golang.org/x/net to v0.17.0 [security] (#1252, @rolinh)
+
 ## [v0.12.1] - 2023-10-11
 [v0.12.1]: https://github.com/cilium/hubble/compare/v0.12.0...v0.12.1