extension.xml does not contain any umlauts

Steps to reproduce

Check extension.xml for bw_dpsg_leiter and you will see that umlauts are missing in title & description:

<extension extensionkey="bw_dpsg_leiter">
    <downloadcounter>0</downloadcounter>
    <version version="1.0.0">
      <title>Leiterbersicht</title>
      <description>Stellt eine Verwaltung und Ausgabe fr Leiter zur Verfgung.</description>
      <state>alpha</state>

Ideally the language should be english but still that should be fixed.

(This issue has been originally created at https://forge.typo3.org/issues/83266)