fix: correct "go get" URL ssh scheme, fix form binding (#39674, #39528) (#39676)

* Backport #39674
* Fix form binding errors (found by #39528)
* Fix #39680

---------

Co-authored-by: Roland Singer <10167163+r0l1@users.noreply.github.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

services/forms/admin.go

@@ -65,6 +65,6 @@ type AdminEditUserForm struct {
 // AdminDashboardForm form for admin dashboard operations
 type AdminDashboardForm struct {
 	middleware.FormDefaultValidator
-	Op   string `binding:"required"`
+	Op   string `binding:"Required"`
 	From string
 }

services/forms/repo_form.go

@@ -571,12 +571,6 @@ type AddTimeManuallyForm struct {
 	Minutes int `binding:"Range(0,1000)"`
 }
 
-// SaveTopicForm form for save topics for repository
-type SaveTopicForm struct {
-	middleware.FormDefaultValidator
-	Topics []string `binding:"topics;Required;"`
-}
-
 // AddDeployTokenForm form for adding a deploy token to a repository
 type AddDeployTokenForm struct {
 	middleware.FormDefaultValidator