Fix postgresql query for deleting auth expiry job

Solid Queue uses a text column, instead of a jsonb, so we need to cast
it as jsonb on the fly.

app/models/remote_storage_authorization.rb

@@ -78,7 +78,7 @@ class RemoteStorageAuthorization < ApplicationRecord
       when /sqlite/
         query.where("json_extract(arguments, '$.arguments') = ?", job_args.to_json)
       when /postgres/
-        query.where("arguments->>'arguments' = ?", job_args.to_json)
+        query.where("CAST(arguments AS jsonb)->>'arguments' = ?", job_args.to_json)
       else
         raise "Unsupported database adapter"
       end.destroy_all