MSOCI-2256: Create S3 bucket for GitHub Actions

Also:
* Correct "Purpose" label for the test S3 bucket previously created

prod/aws-us-gov/mdr-prod-c2/098-github-actions-s3/terragrunt.hcl

@@ -0,0 +1,35 @@
+locals {
+  # If you want to use any of the variables in _this_ file, you have to load them here.
+  # However, they will all be available as inputs to the module loaded in terraform.source
+  # below.
+  environment_vars = read_terragrunt_config(find_in_parent_folders("env.hcl"))
+  partition_vars   = read_terragrunt_config(find_in_parent_folders("partition.hcl"))
+  region_vars      = read_terragrunt_config(find_in_parent_folders("region.hcl"))
+  account_vars     = read_terragrunt_config(find_in_parent_folders("account.hcl"))
+  global_vars      = read_terragrunt_config(find_in_parent_folders("globals.hcl"))
+}
+
+# Terragrunt will copy the Terraform configurations specified by the source parameter, along with any files in the
+# working directory, into a temporary folder, and execute your Terraform commands in that folder.
+terraform {
+  # Double slash is intentional and required to show root of modules
+  source = "git@github.xdr.accenturefederalcyber.com:mdr-engineering/xdr-terraform-modules.git//base/github_actions_s3_bucket?ref=v5.3.3"
+}
+
+# Include all settings from the root terragrunt.hcl file
+include {
+  path = find_in_parent_folders()
+}
+
+# These are the variables we have to pass in to use the module specified in the terragrunt source above
+inputs = {
+  # All of the inputs from the inherited hcl files are available automatically
+  # (via the `inputs` section of the root `terragrunt.hcl`). However, modules
+  # will be more flexible if you specify particular input values.
+  tags = {
+    Purpose   = "GitHub Actions S3 Bucket"
+    Terraform = "aws/${basename(get_parent_terragrunt_dir())}/${path_relative_to_include()}/"
+  }
+}
+terraform_version_constraint  = "= 1.1.6"
+terragrunt_version_constraint = "= 0.36.2"

test/aws-us-gov/mdr-test-c2/098-github-actions-s3/terragrunt.hcl

@@ -27,7 +27,7 @@ inputs = {
   # (via the `inputs` section of the root `terragrunt.hcl`). However, modules
   # will be more flexible if you specify particular input values.
   tags = {
-    Purpose   = "Splunk SmartStore Data"
+    Purpose   = "GitHub Actions S3 Bucket"
     Terraform = "aws/${basename(get_parent_terragrunt_dir())}/${path_relative_to_include()}/"
   }
 }