Add mock data for spam logs

Closes https://gitlab.com/gitlab-org/gitlab-development-kit/issues/387

db/fixtures/development/23_spam_logs.rb

+# frozen_string_literal: true
+
+module Db
+  module Fixtures
+    module Development
+      class SpamLog
+        def self.seed
+          Gitlab::Seeder.quiet do
+            (::SpamLog.default_per_page + 3).times do |i|
+              ::SpamLog.create(
+                user: self.random_user,
+                user_agent: FFaker::Lorem.sentence,
+                source_ip: FFaker::Internet.ip_v4_address,
+                title: FFaker::Lorem.sentence,
+                description: FFaker::Lorem.paragraph,
+                via_api: FFaker::Boolean.random,
+                submitted_as_ham: FFaker::Boolean.random,
+                recaptcha_verified: FFaker::Boolean.random)
+              print '.'
+            end
+          end
+        end
+
+        def self.random_user
+          User.find(User.pluck(:id).sample)
+        end
+      end
+    end
+  end
+end
+
+Db::Fixtures::Development::SpamLog.seed