Wrong SSM parameter

[cadm-markus-brune]

Describe the bug
A wrong SSM parameter for the alfred_ssm usage leads to misleading error message,

e.g. in manifest file:

• name: template1
  resource_file: templates/template1.template
  parameters:
  • parameter_key: SNSAssociationTopicArn
    parameter_value: "$[alfred_ssm_/org/sharedservice/dns/SNSAssociationTopicArn]"
    deploy_method: stack_set
    deployment_targets:
    accounts:
    • testaccount
      regions:
  • eu-central-1

and /org/sharedservice/dns/SNSAssociationTopicArn does not exist

leads to

botocore.exceptions.ClientError: An error occurred (AccessDeniedException) when calling the GetParameter operation: User: arn:aws:sts:::assumed-role/Customizations-for-ControlTo-StackSetCodeBuildRole-/AWSCodeBuild- is not authorized to perform: ssm:GetParameter on resource: arn:aws:ssm:eu-central-1::* because no identity-based policy allows the ssm:GetParameter action

To Reproduce
Specify a wrong SSM parameter as input for a stack

Expected behavior
The output of the codebuild should report, that the SSM parameter specified in the manifest file does not exist.

Please complete the following information about the solution:

• Version: v2.7.1
• Region: eu-central-1
• Was the solution modified from the version published on this repository? No
• If the answer to the previous question was yes, are the changes available on GitHub?
• Have you checked your service quotas for the services this solution uses? Yes
• Were there any errors in the CloudWatch Logs? No