Fix mutations with camelCase table names

[Weiko]

Context

Some mutations are not working properly, workspaceMember soft deletion for example. workspaceMember being a camelCase table name, it's probably not propagated properly to pgql (which needs double quote for the table name to keep it as camelCase)

I didn't have time to dig too much but if the where is before softDelete, the query is WHERE workspaceMember.id = $1 while if it's after, the query becomes WHERE id = $1. Probably due to the fact that once you call delete/softDelete/update, the standard builder (SelectQueryBuilder) becomes a DeleteQueryBuilder/etc... and filters are not handled the same way.