[PF] Rubocop offenses are corrected, CHANGELOG entries are added (#1017)

* CHANGELOG entries for #916 and #1008 are added

Adds the #scroll_batches error-raising entry (#916), moves the
GitHub Actions service entry (#1008) into chronological order,
and registers @tomdev as a contributor.

* Layout/TrailingWhitespace offense is corrected

Author: AlfonsoUceda

CHANGELOG.md

@@ -4,11 +4,12 @@
 
 ### Changes
 
+* [#916](https://github.com/toptal/chewy/pull/916): Raise error in #scroll_batches when search backend returns a failure. ([@tomdev][])
+* [#1008](https://github.com/toptal/chewy/pull/1008): Promote Elasticsearch to a native GitHub Actions service with a health-check gate, replacing the fragile `docker compose` + `sleep 15` approach. ([@mattmenefee][])
 * [#1010](https://github.com/toptal/chewy/pull/1010): Add Chewy 7/ES 7 to Chewy 8/ES 8 migration guide and fix stale `Elasticsearch::Transport` namespace references in docs. ([@mattmenefee][])
 * [#1011](https://github.com/toptal/chewy/pull/1011): Replace deprecated `Sidekiq::Testing` API with new `Sidekiq 8.1+` testing API and silence Sidekiq logger during spec runs. ([@mattmenefee][], [@mjankowski][])
 * [#1013](https://github.com/toptal/chewy/pull/1013): Fix `drop_indices` test helper to use `format: 'json'` for ES version portability. If you define a custom `drop_indices` helper in your test suite, update it to use `Chewy.client.cat.indices(format: 'json')` instead of parsing the text-format response. ([@mattmenefee][])
 * [#1014](https://github.com/toptal/chewy/pull/1014): Improve contributing documentation with development setup instructions, PR workflow, and grammar fixes. ([@mattmenefee][])
-* [#1008](https://github.com/toptal/chewy/pull/1008): Promote Elasticsearch to a native GitHub Actions service with a health-check gate, replacing the fragile `docker compose` + `sleep 15` approach. ([@mattmenefee][])
 
 ## 8.0.1 (2026-03-12)
 
@@ -913,6 +914,7 @@
 [@socialchorus]: https://github.com/socialchorus
 [@taylor-au]: https://github.com/taylor-au
 [@TikiTDO]: https://github.com/TikiTDO
+[@tomdev]: https://github.com/tomdev
 [@undr]: https://github.com/undr
 [@Vitalina-Vakulchyk]: https://github.com/Vitalina-Vakulchyk
 [@webgago]: https://github.com/webgago

lib/chewy/errors.rb

@@ -39,7 +39,7 @@ def initialize(join_field_type, join_field_name, relations)
 
   class MissingHitsInScrollError < Error
   end
-    
+
   class ImportScopeCleanupError < Error
   end
 

lib/chewy/search/scrolling.rb

@@ -47,7 +47,7 @@ def scroll_batches(batch_size: Request::DEFAULT_BATCH_SIZE, scroll: Request::DEF
 
           yield(hits) if hits.present?
           scroll_id = result['_scroll_id']
-          
+
           break if result['terminated_early']
 
           result = perform_scroll(scroll: scroll, scroll_id: scroll_id) unless last_run