Add a few style related fixes across the board

Author: rosa

app/models/solid_queue/blocked_execution.rb

@@ -9,7 +9,7 @@ class BlockedExecution < SolidQueue::Execution
 
     class << self
       def unblock(count)
-        release_many releasable.select(:concurrency_key).distinct.limit(count).pluck(:concurrency_key)
+        release_many releasable.distinct.limit(count).pluck(:concurrency_key)
       end
 
       def release_many(concurrency_keys)

app/models/solid_queue/claimed_execution.rb

@@ -32,7 +32,7 @@ def perform
       failed_with(result.error)
     end
   ensure
-    job.unblock_blocked_jobs
+    job.unblock_next_blocked_job
   end
 
   def release

app/models/solid_queue/job/concurrency_controls.rb

@@ -9,7 +9,7 @@ module ConcurrencyControls
         delegate :concurrency_limit, :concurrency_duration, to: :job_class
       end
 
-      def unblock_blocked_jobs
+      def unblock_next_blocked_job
         if release_concurrency_lock
           release_next_blocked_job
         end

app/models/solid_queue/scheduled_execution.rb

@@ -1,5 +1,5 @@
 class SolidQueue::ScheduledExecution < SolidQueue::Execution
-  scope :due, -> { where("scheduled_at <= ?", Time.current) }
+  scope :due, -> { where(scheduled_at: ..Time.current) }
   scope :ordered, -> { order(scheduled_at: :asc, priority: :asc) }
   scope :next_batch, ->(batch_size) { due.ordered.limit(batch_size) }