Update project repository size and commit count during import:repos task

Closes #3848

CHANGELOG

@@ -3,6 +3,7 @@ Please view this file on the master branch, on stable branches it's out of date.
 v 8.3.0 (unreleased)
   - Bump gollum-lib to 4.1.0 (Stan Hu)
   - Fix broken group avatar upload under "New group" (Stan Hu)
+  - Update project repositorize size and commit count during import:repos task (Stan Hu)
   - Fix API setting of 'public' attribute to false will make a project private (Stan Hu)
   - Handle and report SSL errors in Web hook test (Stan Hu)
   - Fix: Assignee selector is empty when 'Unassigned' is selected (Jose Corcuera)

lib/tasks/gitlab/import.rake

@@ -64,6 +64,8 @@ namespace :gitlab do
 
           if project.persisted?
             puts " * Created #{project.name} (#{repo_path})".green
+            project.update_repository_size
+            project.update_commit_count
           else
             puts " * Failed trying to create #{project.name} (#{repo_path})".red
             puts "   Errors: #{project.errors.messages}".red