Upgrade Solid Queue (#31)

Two step upgrade; migrations combined since zero downtime not relevant.

Reviewed-on: #31

db/migrate/20240909011043_make_name_not_null.solid_queue.rb

@@ -0,0 +1,17 @@
+# This migration comes from solid_queue (originally 20240813160053)
+class MakeNameNotNull < ActiveRecord::Migration[7.1]
+  def up
+    SolidQueue::Process.where(name: nil).find_each do |process|
+      process.name ||= [ process.kind.downcase, SecureRandom.hex(10) ].join("-")
+      process.save!
+    end
+
+    change_column :solid_queue_processes, :name, :string, null: false
+    add_index :solid_queue_processes, [ :name, :supervisor_id ], unique: true
+  end
+
+  def down
+    remove_index :solid_queue_processes, [ :name, :supervisor_id ]
+    change_column :solid_queue_processes, :name, :string, null: false
+  end
+end