Migrate checkbox to be GitLab UI component

app/views/projects/deploy_keys/edit.html.haml

@@ -3,7 +3,7 @@
 %hr
 
 %div
-  = form_for [@project, @deploy_key], include_id: false, html: { class: 'js-requires-input' } do |f|
+  = gitlab_ui_form_for [@project, @deploy_key], include_id: false, html: { class: 'js-requires-input' } do |f|
     = render partial: 'shared/deploy_keys/form', locals: { form: f, deploy_key: @deploy_key }
     .form-actions
       = f.submit _('Save changes'), class: 'gl-button btn btn-confirm'

app/views/shared/deploy_keys/_form.html.haml

@@ -27,8 +27,5 @@
     .form-group
       .col-form-label.col-sm-2
       .col-sm-10
-        = deploy_keys_project_form.label :can_push do
-          = deploy_keys_project_form.check_box :can_push
-          %strong= _('Grant write permissions to this key')
-        %p.light.gl-mb-0
-          = _('Allow this key to push to this repository')
+        = deploy_keys_project_form.gitlab_ui_checkbox_component :can_push, _('Grant write permissions to this key'),
+        help_text: _('Allow this key to push to this repository')