[FTR][Ownership] Features, File Upload, Grok Dbgr, Stats & Kql Telem (#196709)

## Summary

Assign ownership to some files that hopefully result in less than 5
reviewers

### Assignment Reasons

Assigned features due to https://github.com/elastic/kibana/pull/35841

Assigned file_upload due to
c79f0ae786/x-pack/plugins/file_upload/kibana.jsonc (L4)

Assigned grok debugger due to
c79f0ae786/x-pack/plugins/grokdebugger/kibana.jsonc (L4)

Assigned stats due to
c79f0ae786/src/plugins/usage_collection/kibana.jsonc (L4)
- and I found the GET route within
`src/plugins/usage_collection/server/routes/stats/stats.ts`

Assigned kql_telemetry due to
3bfa7c0018/src/plugins/data/kibana.jsonc (L4)
- the service is exposed here:
`src/plugins/data/server/kql_telemetry/kql_telemetry_service.ts`

Contributes to: https://github.com/elastic/kibana/issues/194817

---------

Co-authored-by: kibanamachine <42973632+kibanamachine@users.noreply.github.com>

.github/CODEOWNERS

@@ -1028,6 +1028,7 @@ x-pack/test_serverless/api_integration/test_suites/common/platform_security @ela
 /x-pack/test/api_integration/apis/entity_manager @elastic/obs-entities
 
 # Data Discovery
+/x-pack/test/api_integration/apis/kibana/kql_telemetry @elastic/kibana-data-discovery @elastic/kibana-visualizations
 /x-pack/test_serverless/functional/es_archives/pre_calculated_histogram @elastic/kibana-data-discovery
 /x-pack/test_serverless/functional/es_archives/kibana_sample_data_flights_index_pattern @elastic/kibana-data-discovery
 /x-pack/test_serverless/functional/test_suites/security/config.examples.ts @elastic/kibana-data-discovery
@@ -1276,6 +1277,7 @@ x-pack/test_serverless/**/test_suites/observability/ai_assistant @elastic/obs-ai
 #CC# /src/plugins/kibana_react/public/code_editor/ @elastic/kibana-presentation
 
 # Machine Learning
+/x-pack/test/api_integration/apis/file_upload @elastic/ml-ui
 /x-pack/test/accessibility/apps/group2/ml.ts  @elastic/ml-ui
 /x-pack/test/accessibility/apps/group3/ml_embeddables_in_dashboard.ts @elastic/ml-ui
 /x-pack/test/api_integration/apis/ml/ @elastic/ml-ui
@@ -1371,6 +1373,7 @@ x-pack/test/api_integration/deployment_agnostic/services/ @elastic/appex-qa
 x-pack/test/**/deployment_agnostic/ @elastic/appex-qa #temporarily to monitor tests migration
 
 # Core
+/x-pack/test/api_integration/apis/kibana/stats @elastic/kibana-core
 /x-pack/test_serverless/functional/test_suites/security/config.saved_objects_management.ts @elastic/kibana-core
 /config/ @elastic/kibana-core
 /config/serverless.yml @elastic/kibana-core @elastic/kibana-security
@@ -1398,9 +1401,10 @@ x-pack/test/**/deployment_agnostic/ @elastic/appex-qa #temporarily to monitor te
 /x-pack/plugins/inference @elastic/appex-ai-infra @elastic/obs-ai-assistant @elastic/security-generative-ai
 
 # AppEx Platform Services Security
-/x-pack/test_serverless/api_integration/test_suites/common/security_response_headers.ts  @elastic/kibana-security
+//x-pack/test_serverless/api_integration/test_suites/common/security_response_headers.ts  @elastic/kibana-security
 /x-pack/test/api_integration/apis/es  @elastic/kibana-security
 
+/x-pack/test/api_integration/apis/features  @elastic/kibana-security
 
 # Kibana Telemetry
 /.telemetryrc.json @elastic/kibana-core
@@ -1523,6 +1527,7 @@ x-pack/test/api_integration/apis/management/index_management/inference_endpoints
 /x-pack/test_serverless/**/test_suites/common/grok_debugger/ @elastic/kibana-management
 /x-pack/test/api_integration/apis/management/ @elastic/kibana-management
 /x-pack/test/functional/apps/rollup_job/ @elastic/kibana-management
+/x-pack/test/api_integration/apis/grok_debugger @elastic/kibana-management
 
 #CC# /x-pack/plugins/cross_cluster_replication/ @elastic/kibana-management