Adjusts code owner for two security solutions test files (elastic#210887

)

## Summary

Both files were incorrectly assigned in
elastic#207969. This PR corrects the
assignment to the security solution team.

- /x-pack/test_serverless/functional/test_suites/security/constants.ts 
- /x-pack/test_serverless/api_integration/test_suites/security

Also, the ownership assinment of
`/x-pack/test_serverless/**/test_suites/security/platform_security` was
moved below
`/x-pack/test_serverless/api_integration/test_suites/security`, to
maintain hierarchical ownership.

.github/CODEOWNERS

@@ -1932,18 +1932,15 @@ x-pack/platform/plugins/private/cloud_integrations/cloud_full_story/server/confi
 /x-pack/test/saved_object_api_integration/ @elastic/kibana-security
 /x-pack/test_serverless/**/test_suites/common/platform_security/ @elastic/kibana-security
 /x-pack/test_serverless/**/test_suites/search/platform_security/ @elastic/kibana-security
-/x-pack/test_serverless/**/test_suites/security/platform_security/ @elastic/kibana-security
 /x-pack/test_serverless/**/test_suites/observability/platform_security/ @elastic/kibana-security
 /src/core/packages/http/server-internal/src/cdn_config/ @elastic/kibana-security @elastic/kibana-core
 /x-pack/test_serverless/functional/test_suites/security/config.ts @elastic/kibana-security @elastic/appex-qa
 /x-pack/test_serverless/functional/test_suites/security/config.mki_only.ts @elastic/kibana-security @elastic/appex-qa
 /x-pack/test_serverless/functional/test_suites/security/index.mki_only.ts @elastic/kibana-security @elastic/appex-qa @elastic/kibana-cloud-security-posture
 /x-pack/test_serverless/functional/test_suites/security/config.feature_flags.ts @elastic/kibana-security @elastic/kibana-cloud-security-posture
-/x-pack/test_serverless/functional/test_suites/security/constants.ts @elastic/kibana-security
 /x-pack/test_serverless/api_integration/test_suites/observability/config.feature_flags.ts @elastic/kibana-security
 /x-pack/test_serverless/functional/test_suites/common/spaces/multiple_spaces_enabled.ts @elastic/kibana-security
 /x-pack/test_serverless/functional/page_objects/svl_management_page.ts @elastic/kibana-security
-/x-pack/test_serverless/api_integration/test_suites/security @elastic/kibana-security
 
 /x-pack/test_serverless/functional/test_suites/security/index.feature_flags.ts @elastic/kibana-security
 /x-pack/test_serverless/functional/test_suites/security/index.ts @elastic/kibana-security
@@ -2152,6 +2149,9 @@ x-pack/test/api_integration/apis/management/index_management/inference_endpoints
 /x-pack/test/api_integration/apis/security_solution @elastic/security-solution
 /x-pack/test/functional/es_archives/auditbeat/default @elastic/security-solution
 /x-pack/test/functional/es_archives/auditbeat/hosts @elastic/security-solution
+/x-pack/test_serverless/functional/test_suites/security/constants.ts @elastic/security-solution
+/x-pack/test_serverless/api_integration/test_suites/security @elastic/security-solution
+/x-pack/test_serverless/**/test_suites/security/platform_security/ @elastic/kibana-security
 
 #CC# /x-pack/solutions/security/plugins/security_solution/ @elastic/security-solution
 /x-pack/test/functional/es_archives/cases/signals/duplicate_ids @elastic/response-ops