lock DBWagenreihung to 0.12

cpanfile

@@ -14,7 +14,7 @@ requires 'Mojolicious::Plugin::OAuth2';
 requires 'Mojo::Pg';
 requires 'Text::CSV';
 requires 'Text::Markdown';
-requires 'Travel::Status::DE::DBWagenreihung', '0.12';
+requires 'Travel::Status::DE::DBWagenreihung', '== 0.12';
 requires 'Travel::Status::DE::HAFAS', '>= 5.03';
 requires 'Travel::Status::DE::IRIS';
 requires 'UUID::Tiny';