Update wana_kana to 4.0.0 #313
Description
- Force japanese v1.1.0 meilisearch#3588 (comment)
- panicked to_romaji "ウーッー" PSeitz/wana_kana_rust#13
- meilisearch/meilisearch@0fbda63
- https://github.com/orgs/meilisearch/discussions/532#discussioncomment-9999921
wana_kana 3.x easily panics and make it difficult to be used in the Meilisearch core. Its author says it doesn't panic in v4.0.0., so we should update it.