title: to_tsvector change behaviour
body: <p>I have migrated from RDS Aurora PostgreSQL 13.6 to Hetzner Managed DB PostgreSQL 13.8 and this query</p>
  <p><code>SELECT to_tsvector('I am a heroe') @@ to_tsquery('I &amp; am &amp; a &amp; hero')</code>
  returns FALSE with RDS but TRUE with Hetzner</p>
  <p>What could be the reason that bring this change ?</p>
  <p>RDS uses pg_catalog.simple and Hetzner pg_catalog.english
  But still on Hetzner <code>SELECT to_tsvector('I am a hero') @@ to_tsquery('simple', 'I &amp; am &amp; a &amp; hero')</code> returns false</p>
  <p>Thanks</p>