Broken native Locale support

https://github.com/oracle/graal/issues/1645 and https://github.com/oracle/graal/issues/911 suggest that non-default locales won't work properly in native mode. We should check whether we can leverage the workaround mentioned in https://stackoverflow.com/questions/61567216/graalvm-quarkus-locale-in-native-mode/61594634#61594634

If the workaround works for us, we can use it to "register" Locale.ENGLISH required by Geocoder.

Start by reviewing the linked Graal issues and the Stack Overflow workaround, then examine how Geocoder uses Locale.ENGLISH in native mode. Confirm whether the workaround makes non-default locale support work and whether Locale.ENGLISH can be registered successfully for Geocoder.

Written by the indexing model from the issue text.