add serverless-cdk-plugin to the list

[Eikix]

Proposing to add the @swarmion/serverless-cdk-plugin https://www.npmjs.com/package/@swarmion/serverless-cdk-plugin to the list of serverless plugins.

Create resources using the AWS CDK (SQS, Dynamodb, etc.) and reference them in the Serverless framework configuration's serverless.ts. Serverless then provisions your lambdas AND your other resources!