Add OpenAPI spec for Change Management endpoints (DataDog#3717)

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

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

.generator/schemas/v2/openapi.yaml

@@ -679,6 +679,12 @@ func NewConfiguration() *Configuration {
 			"v2.LinkJiraIssueToCase":                     false,
 			"v2.MoveCaseToProject":                       false,
 			"v2.UnlinkJiraIssue":                         false,
+			"v2.CreateChangeRequest":                     false,
+			"v2.CreateChangeRequestBranch":               false,
+			"v2.DeleteChangeRequestDecision":             false,
+			"v2.GetChangeRequest":                        false,
+			"v2.UpdateChangeRequest":                     false,
+			"v2.UpdateChangeRequestDecision":             false,
 			"v2.ListAWSCloudAuthPersonaMappings":         false,
 			"v2.ActivateContentPack":                     false,
 			"v2.CancelThreatHuntingJob":                  false,