fix: Truncate statement_id length after 100 characters (#54)

* Fix `statement_id` length

* Update logs_monitoring_cloudwatch_log.tf

Co-authored-by: Jim Park <jimp@scribd.com>

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Co-authored-by: Jim Park <jimp@scribd.com>

Author: jjkoh95

logs_monitoring_cloudwatch_log.tf

@@ -9,7 +9,7 @@ resource "aws_cloudwatch_log_subscription_filter" "test_lambdafunction_logfilter
 
 resource "aws_lambda_permission" "allow_cloudwatch_logs_to_call_dd_lambda_handler" {
   count         = length(var.cloudwatch_log_groups)
-  statement_id  = "${replace(var.cloudwatch_log_groups[count.index], "/", "_")}-AllowExecutionFromCloudWatchLogs"
+  statement_id  = "${substr(replace(var.cloudwatch_log_groups[count.index], "/", "_"), 0, 67)}-AllowExecutionFromCloudWatchLogs"
   action        = "lambda:InvokeFunction"
   function_name = aws_cloudformation_stack.datadog-forwarder.outputs.DatadogForwarderArn
   principal     = "logs.${var.aws_region}.amazonaws.com"