message: move hystrix entry to keep the section alphabetically sorted
diff: @@ -75,9 +75,9 @@ EXTENSIONS = {
  #
  "envoy.stat_sinks.dog_statsd": "//source/extensions/stat_sinks/dog_statsd:config",
  + "envoy.stat_sinks.hystrix": "//source/extensions/stat_sinks/hystrix:config",
  "envoy.stat_sinks.metrics_service": "//source/extensions/stat_sinks/metrics_service:config",
  "envoy.stat_sinks.statsd": "//source/extensions/stat_sinks/statsd:config",
  - "envoy.stat_sinks.hystrix": "//source/extensions/stat_sinks/hystrix:config",
  #
  # Tracers
  