Rows are locked

When migrating with the following change function, the columns appear locked in pgAdmin 4. How can I prevent them from being locked? I see no difference with the migrations I have that are unlocked other than that there's no primary_key (and can't be).

    public function change()
    {
        $table = $this->table('events', ['id' => false]);
        $table->addColumn('id', 'uuid', ['default' => \Phinx\Util\Literal::from('uuid_generate_v4()')])
            ->addColumn('data', 'jsonb')
            ->addColumn('created_at', 'datetime', ['timezone' => false,  'default' => \Phinx\Util\Literal::from('now()')])
            ->create();
    }

How can I solve this?

Start by reproducing the shown change() migration against PostgreSQL and inspect the resulting events table in pgAdmin 4. Determine whether the reported locked columns are actual database locks or a pgAdmin state, then document the configuration or migration change that prevents the behavior and verify it after rerunning the migration.