update PR number

Author: jamesfisher-geo

CHANGELOG.md

@@ -11,7 +11,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 - Advanced comparison (LIKE, IN, BETWEEN) operators to the Filter extension [#178](https://github.com/stac-utils/stac-fastapi-elasticsearch/pull/178)
 - Collection update endpoint no longer delete all sub items [#177](https://github.com/stac-utils/stac-fastapi-elasticsearch/pull/177)
-- OpenSearch 2.11.1 support [#187](https://github.com/stac-utils/stac-fastapi-elasticsearch/pull/187)
+- OpenSearch 2.11.1 support [#188](https://github.com/stac-utils/stac-fastapi-elasticsearch/pull/188)
 
 ### Changed