* add reloading service configuration
* add changelog entry
* add tests
* fix typo
* check if config.ServiceRegistration is nil before signaling
* add changes for deregistering service on nil config with failing tests
* fix tests by decreasing reconcile_timeout + setting consul agent tokens
* fix races
* add comments in test
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Co-authored-by: Marc Boudreau <marc.boudreau@hashicorp.com>
