Add missing index for release to blocked_executions table

I inadvertently lost this one on #57.

Author: rosa

db/migrate/20240110143450_add_missing_index_to_blocked_executions.rb

@@ -0,0 +1,5 @@
+class AddMissingIndexToBlockedExecutions < ActiveRecord::Migration[7.1]
+  def change
+    add_index :solid_queue_blocked_executions, [ :concurrency_key, :priority, :job_id ], name: "index_solid_queue_blocked_executions_for_release"
+  end
+end

test/dummy/db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.1].define(version: 2023_12_11_200639) do
+ActiveRecord::Schema[7.1].define(version: 2024_01_10_143450) do
   create_table "job_results", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
     t.string "queue_name"
     t.string "status"
@@ -26,6 +26,7 @@
     t.string "concurrency_key", null: false
     t.datetime "expires_at", null: false
     t.datetime "created_at", null: false
+    t.index ["concurrency_key", "priority", "job_id"], name: "index_solid_queue_blocked_executions_for_release"
     t.index ["expires_at", "concurrency_key"], name: "index_solid_queue_blocked_executions_for_maintenance"
     t.index ["job_id"], name: "index_solid_queue_blocked_executions_on_job_id", unique: true
   end