Update deployment logic for settings changes

[bdunne]

• Sync up deployments from the running bot
• Change the settings location to come from a secret now that the defaults are checked in and only secret values are stored in the yml

[miq-bot]

Checked commit https://github.com/bdunne/miq_bot/commit/b88dcbc2ed6f0f248a9ae67a306bde9eab48e7ac with ruby 2.6.10, rubocop 1.28.2, haml-lint 0.35.0, and yamllint 1 file checked, 1 offense detected

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• [ ] :bomb: :boom: :fire: :fire_engine: - Linter/Yaml - missing config files