Show 404 page when release not found (#12328)
Show 404 page when release not found (#12328)

Signed-off-by: a1012112796 <0a2492404be0c6c42b907cdcd1cb97449035f950@qq.com>

Co-authored-by: Lunny Xiao <0b0704cdf8f0790c6f1df1f74c38be95a8917ed2@gmail.com>
cez81/gitea,vdbt/gitea,vCaesar/gitea,sapk-fork/gitea,cez81/gitea,cez81/gitea,sapk-fork/gitea,go-gitea/gitea,sapk-fork/gitea,go-gitea/gitea,vdbt/gitea,vCaesar/gitea,go-gitea/gitea,sapk-fork/gitea