chore(roadmap): adding an additional item that was unintentionally removed from roadmap (#30572)

### Issue # (if applicable)

Closes #<issue number here>.

### Reason for this change



### Description of changes



### Description of how you validated changes



### Checklist
- [x] 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)

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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: adamjkeller

ROADMAP.md

@@ -44,6 +44,7 @@ The CDK team is committed to supporting our existing library of AWS L2 abstracti
 - 🚦️ [VPC Construct with Full Control](https://github.com/aws/aws-cdk/issues/5927)
 - 🔍 [Rewrite EKS L2](https://github.com/aws/aws-cdk-rfcs/issues/605)
 - 🔍 [Glue Alpha Construct Graduation](https://github.com/aws/aws-cdk-rfcs/issues/497)
+- 🔍 [Auto-generation of L2 constructs](https://github.com/aws/aws-cdk-rfcs/issues/611)
 
 ### Updates/Enhancements