tabledesc: include SchemaLocked in safe string representation

Release note: None

Author: andyyang890

pkg/sql/catalog/tabledesc/safe_format.go

@@ -42,6 +42,9 @@ func formatSafeTableProperties(w *redact.StringBuilder, desc catalog.TableDescri
 	if desc.IsVirtualTable() {
 		w.Printf(", Virtual: true")
 	}
+	if desc.IsSchemaLocked() {
+		w.Printf(", SchemaLocked: true")
+	}
 	formatSafeTableColumns(w, desc)
 	formatSafeTableColumnFamilies(w, desc)
 	formatSafeTableMutationJobs(w, desc)