feat(lambda): add PropagateTags support to CapacityProvider L2 construct

[vicheey]

Description

Lambda CapacityProvider now supports PropagateTags in CloudFormation, allowing customers to propagate tags to managed EC2 instances, ENIs, and EBS volumes. The L1 CfnCapacityProvider already has the propagateTags property, but there is no L2 support.

Tag propagation - AWS LambdaTag propagation - AWS Lambda

Proposed Solution

Add a propagateTags prop to CapacityProviderProps using the static factory class pattern (matching ScalingOptions and InstanceTypeFilter on the same construct):

new lambda.CapacityProvider(this, 'CP', {
  subnets: vpc.privateSubnets,
  securityGroups: [securityGroup],
  propagateTags: lambda.PropagateTags.explicit([
    { key: 'CostCenter', value: 'Engineering' },
  ]),
});

Acknowledgements

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