Update snippets to support v2.3.0 (#360)

* Initial plan

* Update snippets schema URLs from v2.2.0 to v2.3.0

Co-authored-by: garrytrinder <11563347+garrytrinder@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: garrytrinder <11563347+garrytrinder@users.noreply.github.com>

Author: Copilot

CHANGELOG.md

@@ -9,6 +9,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [1.15.1] - Unreleased
 
+### Changed:
+
+- Snippets: All snippets that reference schemas updated to use `v2.3.0` schema
+
 ## [1.14.0] - 2026-03-04
 
 ### Added: