Add rake task to release gem on github and rubygems (#199)

CHANGELOG.md

@@ -10,6 +10,7 @@
 * Update `chromedriver` to `81.0.4044.69`
 * New method `Webdriver.clean_up` for stopping hang-up browsers
 * Support of `rubocop-performance`
+* Add rake task to release gem on github and rubygems
 
 ### Fixes
 

Rakefile

@@ -1,3 +1,17 @@
 # frozen_string_literal: true
 
 require 'bundler/gem_tasks'
+require 'rspec/core/rake_task'
+
+RSpec::Core::RakeTask.new(:spec)
+
+task default: :spec
+
+desc 'Release gem'
+task :release_github_rubygems do
+  Rake::Task['release'].invoke
+  sh('gem push --key github '\
+   '--host https://rubygems.pkg.github.com/onlyoffice-testing-robot '\
+   "pkg/#{OnlyofficeWebdriverWrapper::Name::STRING}-"\
+   "#{OnlyofficeWebdriverWrapper::Version::STRING}.gem")
+end