fix: Sync Karpenter IAM permissions with upstream (#3517)

Sync Karpenter IAM permissions with upstream

Signed-off-by: Erez Zarum <[email protected]>

Author: erezzarum

modules/karpenter/policy.tf

@@ -181,6 +181,7 @@ data "aws_iam_policy_document" "controller" {
     sid       = "AllowRegionalReadActions"
     resources = ["*"]
     actions = [
+      "ec2:DescribeCapacityReservations",
       "ec2:DescribeAvailabilityZones",
       "ec2:DescribeImages",
       "ec2:DescribeInstances",