fix: Use empty strings for metadata default values to avoid template errors (#52)

Author: bryantbiggs

main.tf

@@ -13,9 +13,9 @@ data "aws_region" "current" {
 }
 
 locals {
-  partition  = try(data.aws_partition.current[0].partition, null)
-  account_id = try(data.aws_caller_identity.current[0].account_id, null)
-  region     = try(data.aws_region.current[0].region, null)
+  partition  = try(data.aws_partition.current[0].partition, "aws")
+  account_id = try(data.aws_caller_identity.current[0].account_id, "")
+  region     = try(data.aws_region.current[0].region, "")
 }
 
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