Merge branch 'master' into glitch-soc/merge-upstream

Conflicts:
- `Gemfile.lock`:
  No real conflict, glitch-soc-only dependency (redcarpet) too close to an
  upstream one (rdf-normalize)
- `README.md`:
  we have different READMEs, discarded upstream's changes
- `app/views/admin/custom_emojis/index.html.haml`:
  No real conflict, different context because of glitch-soc theming
- `lib/mastodon/statuses_cli.rb`:
  Upstream added code to keep bookmarked statuses, we were already doing so
  with slightly different code. Discarded upstream's changes.
- `package.json`:
  No real conflict, glitch-soc-only dependency (favico.js) too close to
  an upstream one

Gemfile

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 source 'https://rubygems.org'
-ruby '>= 2.4.0', '< 2.7.0'
+ruby '>= 2.4.0', '< 3.0.0'
 
 gem 'pkg-config', '~> 1.4'
 
@@ -10,6 +10,9 @@ gem 'rails', '~> 5.2.4'
 gem 'sprockets', '~> 3.7.2'
 gem 'thor', '~> 0.20'
 
+gem 'thwait', '~> 0.1.0'
+gem 'e2mmap', '~> 0.1.0'
+
 gem 'hamlit-rails', '~> 0.2'
 gem 'pg', '~> 1.2'
 gem 'makara', '~> 0.4'
@@ -54,7 +57,7 @@ gem 'redis-namespace', '~> 1.7'
 gem 'health_check', git: 'https://github.com/ianheggie/health_check', ref: '0b799ead604f900ed50685e9b2d469cd2befba5b'
 gem 'html2text'
 gem 'htmlentities', '~> 4.3'
-gem 'http', '~> 3.3'
+gem 'http', '~> 4.3'
 gem 'http_accept_language', '~> 2.1'
 gem 'http_parser.rb', '~> 0.6', git: 'https://github.com/tmm1/http_parser.rb', ref: '54b17ba8c7d8d20a16dfc65d1775241833219cf2', submodules: true
 gem 'httplog', '~> 1.3'
@@ -66,7 +69,6 @@ gem 'nilsimsa', git: 'https://github.com/witgo/nilsimsa', ref: 'fd184883048b922b
 gem 'nokogiri', '~> 1.10'
 gem 'nsa', '~> 0.2'
 gem 'oj', '~> 3.10'
-gem 'ostatus2', '~> 2.0'
 gem 'ox', '~> 2.11'
 gem 'parslet'
 gem 'parallel', '~> 1.19'
@@ -79,7 +81,7 @@ gem 'rails-i18n', '~> 5.1'
 gem 'rails-settings-cached', '~> 0.6'
 gem 'redis', '~> 4.1', require: ['redis', 'redis/connection/hiredis']
 gem 'mario-redis-lock', '~> 1.2', require: 'redis_lock'
-gem 'rqrcode', '~> 0.10'
+gem 'rqrcode', '~> 1.1'
 gem 'ruby-progressbar', '~> 1.10'
 gem 'sanitize', '~> 5.1'
 gem 'sidekiq', '~> 5.2'
@@ -100,7 +102,7 @@ gem 'webpush'
 
 gem 'json-ld', git: 'https://github.com/ruby-rdf/json-ld.git', ref: 'e742697a0906e74e8bb777ef98137bc3955d981d'
 gem 'json-ld-preloaded', '~> 3.0'
-gem 'rdf-normalize', '~> 0.3'
+gem 'rdf-normalize', '~> 0.4'
 
 gem 'redcarpet', '~> 3.4'