Bump agent scaler and enable scale in

Author: keithduncan

templates/aws-stack.yml

@@ -1163,7 +1163,7 @@ Resources:
     Properties:
       Location:
         ApplicationId: arn:aws:serverlessrepo:us-east-1:172840064832:applications/buildkite-agent-scaler
-        SemanticVersion: '1.1.3'
+        SemanticVersion: '1.2.0'
       Parameters:
         BuildkiteAgentTokenParameter: !If [ UseCustomerManagedParameterPath, !Ref BuildkiteAgentTokenParameterStorePath, !Ref BuildkiteAgentTokenParameter ]
         BuildkiteAgentTokenParameterStoreKMSKey: !If [ UseCustomerManagedKeyForParameterStore, !Ref BuildkiteAgentTokenParameterStoreKMSKey, "" ]
@@ -1174,3 +1174,4 @@ Resources:
         AgentAutoScaleGroup: !Ref AgentAutoScaleGroup
         ScaleOutFactor: !Ref ScaleOutFactor
         ScaleOutForWaitingJobs: !Ref ScaleOutForWaitingJobs
+        DisableScaleIn: "false"