Box is struggling CPU-wise, make it bigger

prod/aws-us-gov/mdr-prod-afs/account.hcl

@@ -48,7 +48,7 @@ locals {
     "alsi-worker"    = "t3a.small",
     "splunk-cm"      = "m5a.xlarge",  # legacy: t2.small
     "splunk-indexer" = "i3en.6xlarge", # legacy: t2.small, but whats the point if we don't have instance storage.
-    "splunk-hf"      = "m5a.xlarge", # legacy: t2.medium
+    "splunk-hf"      = "m5a.2xlarge", # legacy: t2.medium
     "splunk-sh"      = "m5a.4xlarge", # legacy: ? not sure
   }