docs(CHANGELOG.md): add dependency bump from dependabot

Author: dependabot[bot]

CHANGELOG.md

@@ -27,6 +27,7 @@
 - build(deps): `actions/download-artifact` from 4 to 5 ([#1559](https://github.com/fastly/cli/pull/1559))
 - build(deps): `github.com/klauspost/compress` from 1.18.0 to 1.18.1 ([#1558](https://github.com/fastly/cli/pull/1558))
 - build(deps): `golang.org/x/net` from 0.45.0 to 0.46.0 ([#1558](https://github.com/fastly/cli/pull/1558))
+- build(deps): `github.com/clipperhouse/uax29/v2` from 2.2.0 to 2.3.0 ([#1564](https://github.com/fastly/cli/pull/1564))
 
 
 ## [v12.1.0](https://github.com/fastly/cli/releases/tag/v12.1.0) (2025-09-30)