fixes CNVS-5794
links to an access token to get the proper ARN
test plan:
* set up an SNS app in AWS
* configure your credentials in sns.yml
* set sns_arn on a developer key to be the ARN of the app in SNS
* using an access token created from that developer key,
you should be able to create a push channel
* you should see that channel in your profile (named after your developer
key)
Change-Id: I183241d02715252bf558c495d72d4995cea4232d
Reviewed-on: https://gerrit.instructure.com/25281
Reviewed-by: Cody Cutrer <cody@instructure.com>
Product-Review: Cody Cutrer <cody@instructure.com>
QA-Review: Cody Cutrer <cody@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>