Support for ResourceARN rules in XRAY sampling

I've been trying to filter out my Zappa keep_warm scheduled task, which always comes from the same resource ARN, I thought my sample rules were broken until I realised that the AWS XRAY SDK doesn't support this type of rule.

It's incredibly frustrating to have this automated keep warm tasks registering as user interaction, as my xray console map shows every lambda as being accessed by a user even when they are not available to the public, and only for API consumption.

Issue にはファイルやテストの指定がありません。まず SDK の sampling-rule 処理を探し、AWS X-Ray の ResourceARN ルールがどのように表現されているかを確認してください。ResourceARN ルールで報告されたスケジュール済みタスクを除外でき、その動作が sampling の判定に関する検証でカバーされれば完了です。

索引モデルが issue の本文から書いたものです。