Fix esri secret setting

[rockycodes]

Description

bin/setup is currently throwing an error because AWS is unable to find the secret named esri_arcgis_api_token_secret. That's because it needs to be pre-pended with civiform which is set here. This pr fixes that.

Checklist

General

• Added the correct label
• Assigned to a specific person or civiform/deployment-system
• Performed manual testing (at a minimum run bin/setup without your changes and then bin/deploy with your changes to ensure your changes don't break existing deployments)
• Extended the README / documentation, if necessary (need to extend docs on secrets, will do that as a fast follow)

Instructions for manual testing

Run bin/setup from this branch.

Issue(s) this completes

Fixes civiform/civiform#7407