chore: add cdklabs scope to our analytics (#20981)

So we have tracking on our `cdklabs` projects. 

----

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### Adding new Unconventional Dependencies:

* [ ] This PR adds new unconventional dependencies following the process described [here](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md/#adding-new-unconventional-dependencies)

### New Features

* [ ] Have you added the new feature to an [integration test](https://github.com/aws/aws-cdk/blob/main/INTEGRATION_TESTS.md)?
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*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

Author: iliapolo

packages/@aws-cdk/core/lib/private/runtime-info.ts

@@ -4,7 +4,7 @@ import { Stage } from '../stage';
 
 const ALLOWED_FQN_PREFIXES = [
   // SCOPES
-  '@aws-cdk/', '@aws-cdk-containers/', '@aws-solutions-konstruk/', '@aws-solutions-constructs/', '@amzn/',
+  '@aws-cdk/', '@aws-cdk-containers/', '@aws-solutions-konstruk/', '@aws-solutions-constructs/', '@amzn/', '@cdklabs/',
   // PACKAGES
   'aws-rfdk.', 'aws-cdk-lib.', 'monocdk.',
 ];