Update scalatra, scalatra-forms, ... to 2.8.0 (#2834)
Update scalatra, scalatra-forms, ... to 2.8.0 (#2834)



Co-authored-by: kenji yoshida <118e2024fe991a9d4361a9adac96d24b238fbeae@gmail.com>
xuwei-k/gitbucket,takezoe/gitbucket,gitbucket/gitbucket,imeszaros/gitbucket,gitbucket/gitbucket,takezoe/gitbucket,xuwei-k/gitbucket,takezoe/gitbucket,imeszaros/gitbucket,imeszaros/gitbucket,gitbucket/gitbucket,xuwei-k/gitbucket,gitbucket/gitbucket,xuwei-k/gitbucket,imeszaros/gitbucket,takezoe/gitbucket