Declare the :set-timezone feature for Druid

src/metabase/driver/druid.clj

@@ -178,6 +178,7 @@
                                                :display-name "Broker node port"
                                                :type         :integer
                                                :default      8082}])
+          :features              (constantly #{:set-timezone})
           :field-values-lazy-seq field-values-lazy-seq
           :process-native        process-native
           :process-structured    process-structured}))

src/metabase/driver/druid/query_processor.clj

 (ns metabase.driver.druid.query-processor
   (:require [clojure.core.match :refer [match]]
             [clojure.string :as s]
-            [clojure.tools.logging]
             [clojure.tools.logging :as log]
             [metabase.driver :as driver]
             [metabase.query-processor :as qp]