Adding cloudtrail insight to the cloudtrail regex pattern (#757)

Adding Cloudtrail-Insight to the regex pattern so that Cloudtrail-Insight logs are marked with source of cloudtrail instead of default s3.

Author: thekevinhuang

aws/logs_monitoring/steps/common.py

@@ -9,7 +9,7 @@
 from settings import DD_CUSTOM_TAGS, DD_SERVICE, DD_SOURCE
 
 CLOUDTRAIL_REGEX = re.compile(
-    "\d+_CloudTrail(|-Digest)_\w{2}(|-gov|-cn)-\w{4,9}-\d_(|.+)\d{8}T\d{4,6}Z(|.+).json.gz$",
+    "\d+_CloudTrail(|-Digest|-Insight)_\w{2}(|-gov|-cn)-\w{4,9}-\d_(|.+)\d{8}T\d{4,6}Z(|.+).json.gz$",
     re.I,
 )