docs: introduce 32 bits ci workflow on latest php version

Author: DannyvdSluijs

CHANGELOG.md

@@ -13,6 +13,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added extra breaking change to UPDATE-6.0.md regarding BaseConstraint::addError signature change ([#823](https://github.com/jsonrainbow/json-schema/pull/823)
 - Update constraint class to PHP 7.2 language level ([#824](https://github.com/jsonrainbow/json-schema/pull/824)
 
+### Added
+- Introduce 32 bits CI workflow on latest php version ([#825](https://github.com/jsonrainbow/json-schema/pull/825)
 
 ## [6.4.1] - 2025-04-04
 ### Fixed