eventbridge-sqs-cdk: Update aws-cdk-lib

[kakakakakku]

Issue #, if available:
N/A

Description of changes:
Hi😀 Thanks for the useful patterns!

To keep this pattern maintainable, I updated the aws-cdk-lib.

Check

cdk deploy completed successfully and works good.

$ aws events put-events --entries file://event.json
{
    "FailedEntryCount": 0,
    "Entries": [
        {
            "EventId": "aed38b40-0441-0679-e37c-bd139e3636c6"
        }
    ]
}

$ aws sqs receive-message --queue-url https://sqs.ap-northeast-1.amazonaws.com/000000000000/EventBridgeSQSExample-queue276F7297-RGUaAsACb8J1
{
    "Messages": [
        {
            "MessageId": "2234bce6-a2d4-43b4-9b89-ada3ee922e85",
            "ReceiptHandle": "xxxxx",
            "MD5OfBody": "0a4807fdbf78278cd77eb9bfe9877189",
            "Body": "{\"version\":\"0\",\"id\":\"aed38b40-0441-0679-e37c-bd139e3636c6\",\"detail-type\":\"message-for-queue\",\"source\":\"my-cdk-application\",\"account\":\"000000000000\",\"time\":\"2026-06-07T05:26:26Z\",\"region\":\"ap-northeast-1\",\"resources\":[],\"detail\":{\"message\":\"Hello CDK world!\"}}"
        }
    ]
}

Thank you😀

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[bfreiberg]

Thanks for your contribution!