DbTerminator for SSM Parameter Store can race with the tests or itself

[jillr]

We're seeing ParameterNotFound in our Cloudwatch logs, for example on this CI run. It appears that everything should have worked here so need to reproduce and see if the Db is not updating the entry after the tests delete the Parameter or if something else is going on.
https://app.shippable.com/github/ansible-collections/community.aws/runs/847/35/console

"error \"ParameterNotFound\" terminating SsmParameter: name=/shippable-847-35/deeppath/toodir/samevar, id=/shippable-847-35/deeppath/toodir/samevar age=0:10:01, stale=True"

"Traceback (most recent call last):
  File \"/var/task/terminator/__init__.py\", line 138, in terminate
    instance.terminate()
  File \"/var/task/terminator/application_services.py\", line 323, in terminate
    self.client.delete_parameter(Name=self.id)
  File \"/opt/python/lib/python3.7/site-packages/botocore/client.py\", line 357, in _api_call
    return self._make_api_call(operation_name, kwargs)
  File \"/opt/python/lib/python3.7/site-packages/botocore/client.py\", line 661, in _make_api_call
    raise error_class(parsed_response, operation_name)
botocore.errorfactory.ParameterNotFound: An error occurred (ParameterNotFound) when calling the DeleteParameter operation:"

https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/ssm.html#SSM.Client.delete_parameter