[FTR][Ownership] Assign guided_onboarding, etc (#198044)

## Assignment Reasons


Assigned guided_onboarding due to
https://github.com/elastic/kibana/blob/main/api_docs/guided_onboarding.mdx#L18
- It says "Contact @elastic/appex-sharedux for questions regarding this
plugin."

Assigned shared_ux due to the name

Assigned telemetry due to
https://github.com/elastic/kibana/blob/main/api_docs/telemetry.mdx#L18
- It says "Contact @elastic/kibana-core for questions regarding this
plugin."

Assigned response_stream due to
https://github.com/elastic/kibana/blob/main/examples/response_stream/kibana.jsonc#L4

Assigned advanced_settings due to
https://github.com/elastic/kibana/blob/main/api_docs/advanced_settings.mdx#L18
- It says "Contact @elastic/appex-sharedux for questions regarding this
plugin."

Assigned upgrade_assistant due to
https://github.com/elastic/kibana/blob/main/x-pack/plugins/upgrade_assistant/kibana.jsonc#L4

Assigned functional_cors due to
https://github.com/elastic/kibana/blob/main/x-pack/test/functional_cors/plugins/kibana_cors_test/kibana.jsonc#L4

Assigned x-pack/test/functional_cors due to
https://github.com/elastic/kibana/blob/main/x-pack/test/functional_cors/plugins/kibana_cors_test/kibana.jsonc#L4

Assigned ingest_pipelines due to
https://github.com/elastic/kibana/blob/main/api_docs/ingest_pipelines.mdx#L18
- It says "Contact @elastic/kibana-management for questions regarding
this plugin."

 Assigned disable_ems due to git blame

Assigned cross_cluster_replication due to
https://github.com/elastic/kibana/blob/main/x-pack/plugins/cross_cluster_replication/kibana.jsonc#L5
 
 
 Contributes to: #192979

---------

Co-authored-by: Robert Oskamp <[email protected]>
Co-authored-by: Elastic Machine <[email protected]>

.github/CODEOWNERS

@@ -1295,6 +1295,7 @@ x-pack/test_serverless/**/test_suites/observability/ai_assistant @elastic/obs-ai
 ### END Observability Plugins
 
 # Presentation
+/x-pack/test/disable_ems @elastic/kibana-presentation
 /x-pack/test/functional/apps/dashboard @elastic/kibana-presentation
 /x-pack/test/accessibility/apps/group3/maps.ts  @elastic/kibana-presentation
 /x-pack/test/accessibility/apps/group1/dashboard_panel_options.ts  @elastic/kibana-presentation
@@ -1329,6 +1330,7 @@ x-pack/test_serverless/**/test_suites/observability/ai_assistant @elastic/obs-ai
 /x-pack/test/api_integration/services/ml.ts @elastic/ml-ui
 
 # Additional plugins and packages maintained by the ML team.
+/test/examples/response_stream @elastic/ml-ui
 /x-pack/test/accessibility/apps/group2/transform.ts  @elastic/ml-ui
 /x-pack/test/api_integration/apis/aiops/ @elastic/ml-ui
 /x-pack/test/api_integration/apis/transform/ @elastic/ml-ui
@@ -1459,7 +1461,6 @@ x-pack/test/**/deployment_agnostic/ @elastic/appex-qa #temporarily to monitor te
 # AppEx Platform Services 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
@@ -1571,14 +1572,18 @@ x-pack/test/api_integration/apis/management/index_management/inference_endpoints
 /x-pack/test/functional_search/ @elastic/search-kibana
 
 # Management Experience - Deployment Management
+/x-pack/test/api_integration/services/index_management.ts @elastic/kibana-management
 /x-pack/test/functional/apps/license_management @elastic/kibana-management
 /x-pack/test/functional/apps/painless_lab @elastic/kibana-management
 /x-pack/test/functional/apps/management @elastic/kibana-management
 /x-pack/test/api_integration/services/index_management.ts @elastic/kibana-management
 /x-pack/test/functional/services/grok_debugger.js @elastic/kibana-management
+/x-pack/test/functional/apps/cross_cluster_replication @elastic/kibana-management
 /x-pack/test/functional/apps/grok_debugger @elastic/kibana-management
 /x-pack/test/functional/apps/index_lifecycle_management @elastic/kibana-management
 /x-pack/test/functional/apps/index_management @elastic/kibana-management
+/x-pack/test/functional/apps/ingest_pipelines @elastic/kibana-management
+/x-pack/test/functional/apps/upgrade_assistant @elastic/kibana-management
 /x-pack/test/api_integration/services/ingest_pipelines @elastic/kibana-management
 /x-pack/test/functional/apps/watcher @elastic/kibana-management
 /x-pack/test/api_integration/apis/watcher @elastic/kibana-management
@@ -2016,6 +2021,9 @@ x-pack/test/profiling_api_integration @elastic/obs-ux-infra_services-team
 x-pack/plugins/observability_solution/observability_shared/public/components/profiling @elastic/obs-ux-infra_services-team
 
 # Shared UX
+/test/api_integration/apis/guided_onboarding @elastic/appex-sharedux
+/test/plugin_functional/test_suites/shared_ux @elastic/appex-sharedux
+/x-pack/test/functional/apps/advanced_settings @elastic/appex-sharedux @elastic/kibana-management
 /test/examples/content_management @elastic/appex-sharedux
 /test/plugin_functional/plugins/kbn_sample_panel_action @elastic/appex-sharedux
 /test/functional/apps/kibana_overview @elastic/appex-sharedux