www/ungoogled-chromium: Fix pkg-plist

ungoogled-chromium installs additional locales since 130.0.6723.91.

https://github.com/ungoogled-software/ungoogled-chromium/blob/137.0.7151.103-1/patches/extra/ungoogled-chromium/enable-extra-locales.patch

Approved by: portmgr (blanket)