This PR adds a func for verifying incoming webhooks from Gitea, as well as a middleware for easier addition to a router stack.
Co-authored-by: jolheiser <john.olheiser@gmail.com>
Reviewed-on: https://gitea.com/gitea/go-sdk/pulls/580
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Reviewed-by: Gusted <williamzijl7@hotmail.com>
