chore: fix integ runner by not showing notices (#33551)

### Issue # (if applicable)

Closes #<issue number here>.

### Reason for this change

PR CI consistently failed due to notices showing up in the cdk list command and notice is considered as stacks.

### Description of changes

Force notices flag to false

### Description of how you validated changes

CI passes

### Checklist
- [ ] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

----

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

Author: GavinZZ

packages/@aws-cdk/integ-runner/lib/runner/integ-test-suite.ts

@@ -135,9 +135,11 @@ export class LegacyIntegTestSuite extends IntegTestSuite {
     if (pragma.length > 0) {
       tests.stacks.push(...pragma);
     } else {
-      const stacks = (config.cdk.list({
+      const options: ListOptions = {
         ...config.listOptions,
-      })).split('\n');
+        notices: false,
+      };
+      const stacks = (config.cdk.list(options)).split('\n');
       if (stacks.length !== 1) {
         throw new Error('"cdk-integ" can only operate on apps with a single stack.\n\n' +
           '  If your app has multiple stacks, specify which stack to select by adding this to your test source:\n\n' +