gitlab: 12.7.6 -> 12.8.1

https://about.gitlab.com/releases/2020/02/22/gitlab-12-8-released/
https://about.gitlab.com/releases/2020/02/24/gitlab-12-8-1-released/

pkgs/applications/version-management/gitlab/rubyEnv/Gemfile

@@ -1,6 +1,6 @@
 source 'https://rubygems.org'
 
-gem 'rails', '5.2.3'
+gem 'rails', '6.0.2'
 
 gem 'bootsnap', '~> 1.4'
 
@@ -26,14 +26,14 @@ gem 'marginalia', '~> 1.8.0'
 
 # Authentication libraries
 gem 'devise', '~> 4.6'
-gem 'doorkeeper', '~> 4.3'
-gem 'doorkeeper-openid_connect', '~> 1.5'
+gem 'doorkeeper', '~> 5.0.2'
+gem 'doorkeeper-openid_connect', '~> 1.6.3'
 gem 'omniauth', '~> 1.8'
 gem 'omniauth-auth0', '~> 2.0.0'
 gem 'omniauth-azure-oauth2', '~> 0.0.9'
 gem 'omniauth-cas3', '~> 1.1.4'
 gem 'omniauth-facebook', '~> 4.0.0'
-gem 'omniauth-github', '~> 1.3'
+gem 'omniauth-github', '~> 1.4'
 gem 'omniauth-gitlab', '~> 1.0.2'
 gem 'omniauth-google-oauth2', '~> 0.6.0'
 gem 'omniauth-kerberos', '~> 0.3.0', group: :kerberos
@@ -67,7 +67,7 @@ gem 'u2f', '~> 0.2.1'
 gem 'validates_hostname', '~> 1.0.6'
 gem 'rubyzip', '~> 2.0.0', require: 'zip'
 # GitLab Pages letsencrypt support
-gem 'acme-client', '~> 2.0.2'
+gem 'acme-client', '~> 2.0.5'
 
 # Browser detection
 gem 'browser', '~> 2.5'
@@ -84,10 +84,10 @@ gem 'net-ldap'
 # API
 gem 'grape', '~> 1.1.0'
 gem 'grape-entity', '~> 0.7.1'
-gem 'rack-cors', '~> 1.0.0', require: 'rack/cors'
+gem 'rack-cors', '~> 1.0.6', require: 'rack/cors'
 
 # GraphQL API
-gem 'graphql', '~> 1.9.11'
+gem 'graphql', '~> 1.9.12'
 # NOTE: graphiql-rails v1.5+ doesn't work: https://gitlab.com/gitlab-org/gitlab/issues/31771
 # TODO: remove app/views/graphiql/rails/editors/show.html.erb when https://github.com/rmosolgo/graphiql-rails/pull/71 is released:
 # https://gitlab.com/gitlab-org/gitlab/issues/31747
@@ -149,7 +149,7 @@ gem 'wikicloth', '0.8.1'
 gem 'asciidoctor', '~> 2.0.10'
 gem 'asciidoctor-include-ext', '~> 0.3.1', require: false
 gem 'asciidoctor-plantuml', '0.0.10'
-gem 'rouge', '~> 3.11.0'
+gem 'rouge', '~> 3.15.0'
 gem 'truncato', '~> 0.7.11'
 gem 'bootstrap_form', '~> 4.2.0'
 gem 'nokogiri', '~> 1.10.5'
@@ -301,11 +301,11 @@ gem 'sentry-raven', '~> 2.9'
 gem 'premailer-rails', '~> 1.10.3'
 
 # LabKit: Tracing and Correlation
-gem 'gitlab-labkit', '0.8.0'
+gem 'gitlab-labkit', '0.9.1'
 
 # I18n
 gem 'ruby_parser', '~> 3.8', require: false
-gem 'rails-i18n', '~> 5.1'
+gem 'rails-i18n', '~> 6.0'
 gem 'gettext_i18n_rails', '~> 1.8.0'
 gem 'gettext_i18n_rails_js', '~> 1.3'
 gem 'gettext', '~> 3.2.2', require: false, group: :development
@@ -349,7 +349,7 @@ end
 group :development, :test do
   gem 'bullet', '~> 6.0.2', require: !!ENV['ENABLE_BULLET']
   gem 'pry-byebug', '~> 3.5.1', platform: :mri
-  gem 'pry-rails', '~> 0.3.4'
+  gem 'pry-rails', '~> 0.3.9'
 
   gem 'awesome_print', require: false
 
@@ -381,8 +381,6 @@ group :development, :test do
 
   gem 'knapsack', '~> 1.17'
 
-  gem 'stackprof', '~> 0.2.13', require: false
-
   gem 'simple_po_parser', '~> 1.1.2', require: false
 
   gem 'timecop', '~> 0.8.0'
@@ -427,6 +425,7 @@ gem 'email_reply_trimmer', '~> 0.1'
 gem 'html2text'
 
 gem 'ruby-prof', '~> 1.0.0'
+gem 'stackprof', '~> 0.2.15', require: false
 gem 'rbtrace', '~> 0.4', require: false
 gem 'memory_profiler', '~> 0.9', require: false
 gem 'benchmark-memory', '~> 0.1', require: false
@@ -456,7 +455,7 @@ group :ed25519 do
 end
 
 # Gitaly GRPC protocol definitions
-gem 'gitaly', '~> 1.81.0'
+gem 'gitaly', '~> 1.86.0'
 
 gem 'grpc', '~> 1.24.0'
 
@@ -486,3 +485,10 @@ gem 'liquid', '~> 4.0'
 
 # LRU cache
 gem 'lru_redux'
+
+gem 'erubi', '~> 1.9.0'
+
+# Locked as long as quoted-printable encoding issues are not resolved
+# Monkey-patched in `config/initializers/mail_encoding_patch.rb`
+# See https://gitlab.com/gitlab-org/gitlab/issues/197386
+gem 'mail', '= 2.7.1'