Follow migration steps at rubyjs/mini_racer#218

Author: drusepth

Gemfile

@@ -107,8 +107,9 @@ group :production do
 end
 
 group :test, :production do
-  gem 'mini_racer'
   gem 'pg', '~> 1.2'
+
+  gem "mini_racer", "~> 0.6.2"
 end
 
 group :test do

Gemfile.lock

@@ -1400,6 +1400,7 @@ GEM
       kramdown (~> 2.0)
     language_filter (0.3.01)
     libv8-node (16.10.0.0)
+    libv8-node (16.10.0.0-x86_64-linux)
     listen (3.7.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
@@ -1426,7 +1427,7 @@ GEM
     mini_magick (4.11.0)
     mini_mime (1.1.2)
     mini_portile2 (2.7.1)
-    mini_racer (0.6.1)
+    mini_racer (0.6.2)
       libv8-node (~> 16.10.0.0)
     minitest (5.15.0)
     multi_json (1.15.0)
@@ -1439,6 +1440,8 @@ GEM
     nokogiri (1.13.1)
       mini_portile2 (~> 2.7.0)
       racc (~> 1.4)
+    nokogiri (1.13.1-x86_64-linux)
+      racc (~> 1.4)
     onebox (2.2.19)
       addressable (~> 2.8.0)
       htmlentities (~> 4.3)
@@ -1646,6 +1649,7 @@ GEM
 
 PLATFORMS
   ruby
+  x86_64-linux
 
 DEPENDENCIES
   active_storage_validations
@@ -1681,7 +1685,7 @@ DEPENDENCIES
   medium-editor-rails
   memory_profiler
   meta-tags
-  mini_racer
+  mini_racer (~> 0.6.2)
   newrelic_rpm
   paperclip
   paranoia
@@ -1722,4 +1726,4 @@ RUBY VERSION
    ruby 2.7.2p137
 
 BUNDLED WITH
-   2.1.4
+   2.3.5