fix: bad error checks in custom resources (#26392)

Fixes bad error checking in custom resoruce for
cross-region-ssm-writer-handler and redshift cluster-reboot.


----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

packages/@aws-cdk/aws-redshift-alpha/lib/cluster-parameter-change-reboot-handler/index.ts

@@ -1,5 +1,5 @@
 // eslint-disable-next-line import/no-extraneous-dependencies
-import { Redshift } from '@aws-sdk/client-redshift';
+import { InvalidClusterStateFault, Redshift } from '@aws-sdk/client-redshift';
 
 const redshift = new Redshift({});
 
@@ -21,7 +21,7 @@ async function rebootClusterIfRequired(clusterId: string, parameterGroupName: st
       try {
         await redshift.rebootCluster({ ClusterIdentifier: clusterId });
       } catch (err: any) {
-        if (err.code === 'InvalidClusterState') {
+        if (err instanceof InvalidClusterStateFault) {
           return await executeActionForStatus(status, 30000);
         } else {
           throw err;