fix: Macros authorizations (#5779)

Macros policy update.

ref: #5730

db/migrate/20221102082737_change_macros_created_by_to_null.rb

@@ -0,0 +1,9 @@
+class ChangeMacrosCreatedByToNull < ActiveRecord::Migration[6.1]
+  def change
+    change_column_null :macros, :created_by_id, true
+    change_column_null :macros, :updated_by_id, true
+
+    remove_index :macros, :created_by_id, if_exists: true
+    remove_index :macros, :updated_by_id, if_exists: true
+  end
+end