Move ZoomUrlValidator into Gitlab::Utils namespace

Move `ZoomUrlValidator` into `Gitlab::Utils::ZoomUrlValidator`.
Fixes `Gitlab/NamespacedClass` cop

.rubocop_manual_todo.yml

@@ -1988,7 +1988,6 @@ Gitlab/NamespacedClass:
     - 'app/validators/untrusted_regexp_validator.rb'
     - 'app/validators/nested_attributes_duplicates_validator.rb'
     - 'app/validators/x509_certificate_credentials_validator.rb'
-    - 'app/validators/zoom_url_validator.rb'
     - 'app/workers/admin_email_worker.rb'
     - 'app/workers/approve_blocked_pending_approval_users_worker.rb'
     - 'app/workers/archive_trace_worker.rb'

app/models/zoom_meeting.rb

@@ -10,7 +10,7 @@ class ZoomMeeting < ApplicationRecord
   validates :project, presence: true, unless: :importing?
   validates :issue, presence: true, unless: :importing?
 
-  validates :url, presence: true, length: { maximum: 255 }, zoom_url: true
+  validates :url, presence: true, length: { maximum: 255 }, 'gitlab/utils/zoom_url': true
   validates :issue, same_project_association: true, unless: :importing?
 
   enum issue_status: {

app/validators/gitlab/utils/zoom_url_validator.rb

+# frozen_string_literal: true
+
+# Gitlab::Utils::ZoomUrlValidator
+#
+# Custom validator for zoom urls
+#
+module Gitlab
+  module Utils
+    class ZoomUrlValidator < ActiveModel::EachValidator
+      ALLOWED_SCHEMES = %w(https).freeze
+
+      def validate_each(record, attribute, value)
+        links_count = Gitlab::ZoomLinkExtractor.new(value).links.size
+        valid = Gitlab::UrlSanitizer.valid?(value, allowed_schemes: ALLOWED_SCHEMES)
+
+        return if links_count == 1 && valid
+
+        record.errors.add(:url, 'must contain one valid Zoom URL')
+      end
+    end
+  end
+end

app/validators/zoom_url_validator.rb

-# frozen_string_literal: true
-
-# ZoomUrlValidator
-#
-# Custom validator for zoom urls
-#
-class ZoomUrlValidator < ActiveModel::EachValidator
-  ALLOWED_SCHEMES = %w(https).freeze
-
-  def validate_each(record, attribute, value)
-    links_count = Gitlab::ZoomLinkExtractor.new(value).links.size
-    valid = Gitlab::UrlSanitizer.valid?(value, allowed_schemes: ALLOWED_SCHEMES)
-
-    return if links_count == 1 && valid
-
-    record.errors.add(:url, 'must contain one valid Zoom URL')
-  end
-end

spec/validators/zoom_url_validator_spec.rb → spec/validators/gitlab/utils/zoom_url_validator_spec.rb

@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe ZoomUrlValidator do
+RSpec.describe Gitlab::Utils::ZoomUrlValidator do
   let(:zoom_meeting) { build(:zoom_meeting) }
 
   describe 'validations' do