fix(redshift-alpha): incorrect CR runtime version (aws#26406)

Fixes the database-query custom resource in redshift alpha to correctly use Node18 as the runtime version since it now uses sdk v3.

Fixes: aws#26397

----

*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/private/database-query.ts

@@ -8,7 +8,6 @@ import { Construct } from 'constructs';
 import { DatabaseQueryHandlerProps } from './handler-props';
 import { Cluster } from '../cluster';
 import { DatabaseOptions } from '../database-options';
-import { builtInCustomResourceNodeRuntime } from 'aws-cdk-lib/custom-resources';
 
 export interface DatabaseQueryProps<HandlerProps> extends DatabaseOptions {
   readonly handler: string;
@@ -35,7 +34,7 @@ export class DatabaseQuery<HandlerProps> extends Construct implements iam.IGrant
       code: lambda.Code.fromAsset(path.join(__dirname, 'database-query-provider'), {
         exclude: ['*.ts'],
       }),
-      runtime: builtInCustomResourceNodeRuntime(this),
+      runtime: lambda.Runtime.NODEJS_18_X,
       handler: 'index.handler',
       timeout: cdk.Duration.minutes(1),
       uuid: '3de5bea7-27da-4796-8662-5efb56431b5f',

packages/@aws-cdk/aws-redshift-alpha/test/integ.database-columnid.js.snapshot/aws-cdk-redshift-cluster-database.assets.json

@@ -27,15 +27,15 @@
         }
       }
     },
-    "693ec571fbb940cd06ab4a60631c0dfa9781d609f7a43e1158d2a947b1ea9789": {
+    "58d7225c544c926222bb05c702241fafc73493fc230235bf263756b6ceaeabae": {
       "source": {
         "path": "aws-cdk-redshift-cluster-database.template.json",
         "packaging": "file"
       },
       "destinations": {
         "current_account-current_region": {
           "bucketName": "cdk-hnb659fds-assets-${AWS::AccountId}-${AWS::Region}",
-          "objectKey": "693ec571fbb940cd06ab4a60631c0dfa9781d609f7a43e1158d2a947b1ea9789.json",
+          "objectKey": "58d7225c544c926222bb05c702241fafc73493fc230235bf263756b6ceaeabae.json",
           "assumeRoleArn": "arn:${AWS::Partition}:iam::${AWS::AccountId}:role/cdk-hnb659fds-file-publishing-role-${AWS::AccountId}-${AWS::Region}"
         }
       }