Fix event pattern structure

Author: keithduncan

templates/aws-stack.yml

@@ -1190,7 +1190,7 @@ Resources:
         detail-type:
           - "EC2 Instance-launch Lifecycle Action"
         detail:
-          AutoScalingGroupName: !Ref AgentAutoScaleGroup
+          AutoScalingGroupName: [ !Ref AgentAutoScaleGroup ]
       Targets:
         - Arn: !Sub arn:${AWS::Partition}:ssm:${AWS::Region}:${AWS::AccountId}:automation-definition/${BootHookAutomation}:$DEFAULT
           RoleArn: !GetAtt EventBridgeRuleRole.Arn
@@ -1258,7 +1258,7 @@ Resources:
         detail-type:
           - "EC2 Instance-terminate Lifecycle Action"
         detail:
-          AutoScalingGroupName: !Ref AgentAutoScaleGroup
+          AutoScalingGroupName: [ !Ref AgentAutoScaleGroup ]
       Targets:
         - Arn: !Sub arn:${AWS::Partition}:ssm:${AWS::Region}:${AWS::AccountId}:automation-definition/${BootHookAutomation}:$DEFAULT
           RoleArn: !GetAtt EventBridgeRuleRole.Arn