chore(i18n): update German translation

Currently translated at 100.0% (69 of 69 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/de/

_kosmorro/locales/de/LC_MESSAGES/messages.po

@@ -8,7 +8,7 @@ msgstr ""
 "Project-Id-Version: kosmorro 0.9.0\n"
 "Report-Msgid-Bugs-To: jerome@deuchnord.fr\n"
 "POT-Creation-Date: 2021-01-31 10:15+0100\n"
-"PO-Revision-Date: 2021-05-09 18:44+0000\n"
+"PO-Revision-Date: 2021-05-15 15:04+0000\n"
 "Last-Translator: Jérôme Deuchnord <jerome@deuchnord.fr>\n"
 "Language-Team: German <https://hosted.weblate.org/projects/kosmorro/cli/de/>"
 "\n"
@@ -140,7 +140,7 @@ msgstr "Ephemeriden des Tages"
 
 #: kosmorrolib/dumper.py:231
 msgid "hours"
-msgstr "Uhr"
+msgstr "Uhren"
 
 #: kosmorrolib/dumper.py:235
 msgid "Expected events"