docs: update CDK Roadmap - 2/2025 (#33379)

updates to the CDK roadmap to include work in progress items as well as
features committed for 2025.

### Issue # (if applicable)

Closes #<issue number here>.

### Reason for this change

<!--What is the bug or use case behind this change?-->

### Description of changes

updates to the CDK roadmap to include work in progress items as well as
features committed for 2025.

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What code changes did you make? 
Have you made any important design decisions?
What AWS use cases does this change enable? To enable the use cases,
which AWS service features are utilized?
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### Describe any new or updated permissions being added

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changes being introduced ? -->


### Description of how you validated changes

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### 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)

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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*

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Co-authored-by: Adam Keller <adam@adamjkeller.com>
Co-authored-by: Adam Keller <adamjkeller@users.noreply.github.com>