fix(events): EventBus.archive() does not forward kmsKey to Archive construct

[markbecker7]

Reason for this change

The EventBus.archive() method accepts a kmsKey parameter in its props argument, but was not forwarding this parameter to the underlying Archive construct. This prevented users from encrypting EventBridge archives using customer-managed KMS keys even when they explicitly specified the kmsKey prop.

Description of changes

Modified the EventBus.archive() method in packages/aws-cdk-lib/aws-events/lib/event-bus.ts to forward the kmsKey  property from BaseArchiveProps to the Archive constructor: kmsKey: props.kmsKey,

This one-line change ensures that when users provide a KMS key for encryption, it is properly passed through to the underlying Archive construct, allowing customer-managed KMS encryption to work as originally intended.

Describe any new or updated permissions being added

No new permissions are being added. This change enables the use of existing kms:Decrypt and kms:GenerateDataKey permissions that users would already have if they use customer-managed KMS keys for other AWS services.

Description of how you validated changes

Added a new unit test to test that the archive forwards the kmsKey to the underlying Archive construct, which verifies the kmsKey parameter is properly forwarded to the underlying Archive construct and that KmsKeyIdentifier is correctly set on the CloudFormation Archive resource. All existing tests continue to pass.

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

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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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