fix: incorrect datetime value: '0000-00-00' for column latest_updated… (#6541) (#6542)

* fix: incorrect datetime value: '0000-00-00' for column latest_updated_date

* fix: remove some code

Co-authored-by: abeizn <zikuan.an@merico.dev>

Author: github-actions[bot]

backend/plugins/github_graphql/tasks/deployment_collector_extractor.go

@@ -171,7 +171,9 @@ func convertGithubDeployment(deployment GraphqlQueryDeploymentDeployment, connec
 		CreatedDate:       deployment.CreatedAt,
 		UpdatedDate:       deployment.UpdatedAt,
 		LatestStatusState: deployment.LatestStatus.State,
-		LatestUpdatedDate: deployment.LatestStatus.UpdatedAt,
+	}
+	if !deployment.LatestStatus.UpdatedAt.IsZero() {
+		ret.LatestUpdatedDate = deployment.LatestStatus.UpdatedAt
 	}
 	if deployment.Ref != nil {
 		ret.RefName = deployment.Ref.Name