[Ownership] Assign test files to data discovery team (#200932)

## Summary

Assign test files to data discovery team

Contributes to: #192979

.github/CODEOWNERS

@@ -1049,6 +1049,23 @@ x-pack/test_serverless/api_integration/test_suites/common/platform_security @ela
 
 
 # Data Discovery
+/x-pack/test/functional/fixtures/kbn_archiver/kibana_scripted_fields_on_logstash.json @elastic/kibana-data-discovery # Assigned per only use: https://github.com/elastic/kibana/blob/main/x-pack/test/functional/apps/discover/async_scripted_fields.ts#L35
+/x-pack/test/functional/es_archives/getting_started/shakespeare @elastic/kibana-data-discovery
+/x-pack/test/functional/fixtures/kbn_archiver/discover @elastic/kibana-data-discovery
+/test/functional/fixtures/kbn_archiver/unmapped_fields.json @elastic/kibana-data-discovery # Assigned per only use: https://github.com/elastic/kibana/blob/main/test/functional/apps/discover/group7/_indexpattern_with_unmapped_fields.ts#L28
+/test/functional/fixtures/kbn_archiver/testlargestring.json @elastic/kibana-data-discovery # Assigned per only use: https://github.com/elastic/kibana/blob/main/test/functional/apps/discover/group5/_large_string.ts#L28
+/test/functional/fixtures/kbn_archiver/message_with_newline.json @elastic/kibana-data-discovery # Assigned per only use: https://github.com/elastic/kibana/blob/main/test/functional/apps/discover/classic/_doc_table_newline.ts#L26
+/test/functional/fixtures/kbn_archiver/invalid_scripted_field.json @elastic/kibana-data-discovery
+/test/functional/fixtures/kbn_archiver/index_pattern_without_timefield.json @elastic/kibana-data-discovery
+/test/functional/fixtures/kbn_archiver/discover @elastic/kibana-data-discovery
+/test/functional/fixtures/kbn_archiver/discover.json @elastic/kibana-data-discovery
+/test/functional/fixtures/kbn_archiver/date_nested.json @elastic/kibana-data-discovery
+/test/functional/fixtures/kbn_archiver/date_* @elastic/kibana-data-discovery
+/test/functional/fixtures/es_archiver/unmapped_fields @elastic/kibana-data-discovery # Assigned per the only use: https://github.com/elastic/kibana/blob/main/test/functional/apps/discover/group7/_indexpattern_with_unmapped_fields.ts#L26
+/test/functional/fixtures/es_archiver/message_with_newline @elastic/kibana-data-discovery # Assigned per the only use: https://github.com/elastic/kibana/blob/main/test/functional/apps/discover/classic/_doc_table_newline.ts#L24
+/test/functional/fixtures/es_archiver/hamlet @elastic/kibana-data-discovery # Assigned per the only use: https://github.com/elastic/kibana/blob/main/test/functional/apps/discover/group5/_large_string.ts#L30
+/test/api_integration/fixtures/kbn_archiver/index_patterns @elastic/kibana-data-discovery
+/test/api_integration/fixtures/es_archiver/index_patterns @elastic/kibana-data-discovery
 /test/functional/fixtures/es_archiver/alias @elastic/kibana-data-discovery
 /test/functional/page_objects/context_page.ts @elastic/kibana-data-discovery
 /test/functional/services/data_views.ts @elastic/kibana-data-discovery