Misc Webhooks Fixes (#12038)

* fix(webhooks): don t parse response as json

* upgrade got to version 10

* remove old header

* fix tests

* fix email auth

* add migration

* update email error

* split migration in two

website/server/models/webhook.js

@@ -58,6 +58,8 @@ export const schema = new Schema({
     required: true,
     validate: [v => validator.isURL(v, {
       require_tld: !!IS_PRODUCTION, // eslint-disable-line camelcase
+      require_protocol: true, // TODO migrate existing ones
+      protocols: ['http', 'https'],
     }), shared.i18n.t('invalidUrl')],
   },
   enabled: { $type: Boolean, required: true, default: true },