GP2->GP3 update for Cribl

* Update TF for ALSI to use GP3

* Update TF for ALSI to use GP3

base/splunk_servers/alsi/master.tf

@@ -31,7 +31,7 @@ resource "aws_instance" "master" {
 
   # These device definitions are optional, but added for clarity.
   root_block_device {
-    volume_type = "gp2"
+    volume_type = "gp3"
     #volume_size = Override via var?
     delete_on_termination = true
     encrypted             = true

base/splunk_servers/alsi/workers.tf

@@ -38,7 +38,7 @@ resource "aws_instance" "worker" {
 
   # These device definitions are optional, but added for clarity.
   root_block_device {
-    volume_type = "gp2"
+    volume_type = "gp3"
     #volume_size = Override via var?
     delete_on_termination = true
     encrypted             = true