fix: Ensure IRSA for EKS FSX can Update File Systems (#520)

Co-authored-by: Bryant Biggs <[email protected]>

Author: kamirendawkins

modules/iam-role-for-service-accounts-eks/policies.tf

@@ -640,6 +640,7 @@ data "aws_iam_policy_document" "fsx_lustre_csi" {
       "fsx:DeleteFileSystem",
       "fsx:DescribeFileSystems",
       "fsx:TagResource",
+      "fsx:UpdateFileSystem",
     ]
     resources = ["*"]
   }