Describe the feature

I would like support for GRAVITON3 processes.

Use Case

I can't deploy the latest graviton CPU.

Proposed Solution

Add it to the instance class definitions.

Other Information

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

CDK version used

2.25.0

Environment details (OS name and version, etc.)

MacOS 12.3.1, Python 3.9.12, Node v18.2.0