Document LLM Observability span search and data deletion endpoints (#4118)

Co-authored-by: ci.datadog-api-spec <packages@datadoghq.com>

Author: api-clients-generation-pipeline[bot]

.generator/schemas/v2/openapi.yaml

@@ -683,6 +683,7 @@ func NewConfiguration() *Configuration {
 			"v2.DeleteLLMObsAnnotationQueue":                    false,
 			"v2.DeleteLLMObsAnnotationQueueInteractions":        false,
 			"v2.DeleteLLMObsCustomEvalConfig":                   false,
+			"v2.DeleteLLMObsData":                               false,
 			"v2.DeleteLLMObsDatasetRecords":                     false,
 			"v2.DeleteLLMObsDatasets":                           false,
 			"v2.DeleteLLMObsExperiments":                        false,
@@ -696,7 +697,9 @@ func NewConfiguration() *Configuration {
 			"v2.ListLLMObsExperimentEvents":                     false,
 			"v2.ListLLMObsExperiments":                          false,
 			"v2.ListLLMObsProjects":                             false,
+			"v2.ListLLMObsSpans":                                false,
 			"v2.SearchLLMObsExperimentation":                    false,
+			"v2.SearchLLMObsSpans":                              false,
 			"v2.SimpleSearchLLMObsExperimentation":              false,
 			"v2.UpdateLLMObsAnnotationQueue":                    false,
 			"v2.UpdateLLMObsAnnotationQueueLabelSchema":         false,