[FTR][Ownership] Assign visualize, etc (#197664)

## Summary

Assign test files to small number of reviewers

### Assignment Reasons

Assigned visualize due to the name

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


Assigned kubernetes_security per
https://github.com/elastic/kibana/blob/main/x-pack/plugins/kubernetes_security/kibana.jsonc#L4

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

Assigned rule_registry due to
https://github.com/elastic/kibana/blob/main/x-pack/plugins/rule_registry/kibana.jsonc#L4-L5

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

Assigned observability_onboarding_api_integration due to
https://github.com/elastic/kibana/blob/main/api_docs/observability_onboarding.mdx#L18
- It says `Contact @elastic/obs-ux-logs-team for questions regarding
this plugin.`

Contributes to: #194817

.github/CODEOWNERS

@@ -1094,6 +1094,7 @@ src/plugins/discover/public/context_awareness/profile_providers/security @elasti
 # Visualizations
 /x-pack/test/accessibility/apps/group3/graph.ts @elastic/kibana-visualizations
 /x-pack/test/accessibility/apps/group2/lens.ts @elastic/kibana-visualizations
+/x-pack/test/functional/apps/visualize @elastic/kibana-visualizations
 /src/plugins/visualize/ @elastic/kibana-visualizations
 /x-pack/test/functional/apps/lens @elastic/kibana-visualizations
 /x-pack/test/api_integration/apis/lens/ @elastic/kibana-visualizations
@@ -1260,6 +1261,7 @@ x-pack/test_serverless/**/test_suites/observability/ai_assistant @elastic/obs-ai
 /x-pack/test_serverless/api_integration/test_suites/observability/synthetics @elastic/obs-ux-management-team
 
 # obs-ux-logs-team
+/x-pack/test/observability_onboarding_api_integration @elastic/obs-ux-logs-team
 /x-pack/test_serverless/api_integration/test_suites/observability/index.feature_flags.ts @elastic/obs-ux-logs-team
 /x-pack/test/api_integration/apis/logs_ui @elastic/obs-ux-logs-team
 /x-pack/test/dataset_quality_api_integration @elastic/obs-ux-logs-team
@@ -1360,6 +1362,8 @@ x-pack/test_serverless/**/test_suites/observability/ai_assistant @elastic/obs-ai
 /.eslintignore @elastic/kibana-operations
 
 # Appex QA
+/x-pack/test/scalability @elastic/appex-qa
+/src/dev/performance @elastic/appex-qa
 /x-pack/test/functional/config.*.* @elastic/appex-qa
 /x-pack/test/api_integration/ftr_provider_context.d.ts @elastic/appex-qa # Maybe this should be a glob?
 /x-pack/test/accessibility/services.ts @elastic/appex-qa
@@ -1398,6 +1402,9 @@ 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/usage_collection @elastic/kibana-core
+/x-pack/test/licensing_plugin @elastic/kibana-core
+/x-pack/test/functional_execution_context @elastic/kibana-core
 /x-pack/test/api_integration/apis/telemetry @elastic/kibana-core
 /x-pack/test/api_integration/apis/status @elastic/kibana-core
 /x-pack/test/api_integration/apis/stats @elastic/kibana-core
@@ -1484,6 +1491,7 @@ x-pack/plugins/cloud_integrations/cloud_full_story/server/config.ts @elastic/kib
 #CC# /x-pack/plugins/security/ @elastic/kibana-security
 
 # Response Ops team
+/x-pack/test/rule_registry @elastic/response-ops @elastic/obs-ux-management-team
 /x-pack/test/accessibility/apps/group3/rules_connectors.ts @elastic/response-ops
 /x-pack/test/functional/es_archives/cases/default @elastic/response-ops
 /x-pack/test_serverless/api_integration/test_suites/observability/config.ts @elastic/response-ops
@@ -1915,6 +1923,7 @@ x-pack/plugins/osquery @elastic/security-defend-workflows
 
 # Cloud Security Posture
 x-pack/packages/kbn-cloud-security-posture @elastic/kibana-cloud-security-posture
+/x-pack/test/kubernetes_security @elastic/kibana-cloud-security-posture
 /x-pack/test_serverless/functional/test_suites/security/config.cloud_security_posture.* @elastic/kibana-cloud-security-posture
 /x-pack/plugins/security_solution/public/cloud_security_posture @elastic/kibana-cloud-security-posture
 /x-pack/test/api_integration/apis/cloud_security_posture/ @elastic/kibana-cloud-security-posture