fiat 0.44.0
feat(api): Support enabling fiat at runtime (#233) This PR will always register the `FiatAuthenticationFilter` in the authentication chain _but_ allow for it to be disabled at runtime depending on the dynamic config service. The `FiatAuthenticationFilter` has been modified to no-op when fiat would have previously been disabled. A metric is also emitted (`fiat.enabled` to track whether fiat is enabled on a service/instance basis).