Add OpenAPI spec for LLM Observability Experiments API (DataDog#3742)

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

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

.generator/schemas/v2/openapi.yaml

@@ -798,6 +798,23 @@ func NewConfiguration() *Configuration {
 			"v2.ListServiceNowTemplates":                 false,
 			"v2.ListServiceNowUsers":                     false,
 			"v2.UpdateServiceNowTemplate":                false,
+			"v2.CreateLLMObsDataset":                     false,
+			"v2.CreateLLMObsDatasetRecords":              false,
+			"v2.CreateLLMObsExperiment":                  false,
+			"v2.CreateLLMObsExperimentEvents":            false,
+			"v2.CreateLLMObsProject":                     false,
+			"v2.DeleteLLMObsDatasetRecords":              false,
+			"v2.DeleteLLMObsDatasets":                    false,
+			"v2.DeleteLLMObsExperiments":                 false,
+			"v2.DeleteLLMObsProjects":                    false,
+			"v2.ListLLMObsDatasetRecords":                false,
+			"v2.ListLLMObsDatasets":                      false,
+			"v2.ListLLMObsExperiments":                   false,
+			"v2.ListLLMObsProjects":                      false,
+			"v2.UpdateLLMObsDataset":                     false,
+			"v2.UpdateLLMObsDatasetRecords":              false,
+			"v2.UpdateLLMObsExperiment":                  false,
+			"v2.UpdateLLMObsProject":                     false,
 			"v2.AddRoleToRestrictionQuery":               false,
 			"v2.CreateRestrictionQuery":                  false,
 			"v2.DeleteRestrictionQuery":                  false,