fix: add !Sub to ReconciliationRole name in configurator (#42) (#42)

Without !Sub, CFN left ${AWS::Region} as a literal string, which made
IAM reject the RoleName ('$', '{', '}' are not in the allowed character
set). The YAML template already had !Sub; only the configurator-rendered
deploy.sh path was broken, so the single E2E job "Test deploy.sh
generation and execution" went red while the StackSet path stayed green.

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: hyunsies

configurator.html

@@ -5701,7 +5701,7 @@ <h3 style="margin:20px 0 8px;font-size:14px;" data-i18n="ui_editor_script_previe
   ReconciliationRole:
     Type: AWS::IAM::Role
     Properties:
-      RoleName: map-auto-tagger-recon-role-${mpe}-\${AWS::Region}
+      RoleName: !Sub 'map-auto-tagger-recon-role-${mpe}-\${AWS::Region}'
       AssumeRolePolicyDocument:
         Version: '2012-10-17'
         Statement: