Inclusion of rename organization api (#33303)

This adds an endpoint (`/orgs/{org}/rename`) to rename organizations.

I've modeled the endpoint using the rename user endpoint --
`/admin/users/{username}/rename` -- as base.

It is the 1st time I wrote a new API endpoint (I've tried to follow the
rename users endpoint code while writing it). So feel free to ping me if
there is something wrong or missing.

Resolves #32995

---------

Signed-off-by: Bruno Sofiato <bruno.sofiato@gmail.com>
Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

routers/api/v1/api.go

@@ -1530,6 +1530,7 @@ func Routes() *web.Router {
 			m.Combo("").Get(org.Get).
 				Patch(reqToken(), reqOrgOwnership(), bind(api.EditOrgOption{}), org.Edit).
 				Delete(reqToken(), reqOrgOwnership(), org.Delete)
+			m.Post("/rename", reqToken(), reqOrgOwnership(), bind(api.RenameOrgOption{}), org.Rename)
 			m.Combo("/repos").Get(user.ListOrgRepos).
 				Post(reqToken(), bind(api.CreateRepoOption{}), repo.CreateOrgRepo)
 			m.Group("/members", func() {