Update http_parser.rb to head version (#7467)

Gemfile

@@ -50,6 +50,7 @@ gem 'redis-namespace', '~> 1.5'
 gem 'htmlentities', '~> 4.3'
 gem 'http', '~> 3.2'
 gem 'http_accept_language', '~> 2.1'
+gem 'http_parser.rb', '~> 0.6', git: 'https://github.com/tmm1/http_parser.rb', ref: '54b17ba8c7d8d20a16dfc65d1775241833219cf2'
 gem 'httplog', '~> 1.0'
 gem 'idn-ruby', require: 'idn'
 gem 'kaminari', '~> 1.1'

Gemfile.lock

@@ -1,3 +1,10 @@
+GIT
+  remote: https://github.com/tmm1/http_parser.rb
+  revision: 54b17ba8c7d8d20a16dfc65d1775241833219cf2
+  ref: 54b17ba8c7d8d20a16dfc65d1775241833219cf2
+  specs:
+    http_parser.rb (0.6.1)
+
 GEM
   remote: https://rubygems.org/
   specs:
@@ -252,7 +259,6 @@ GEM
       domain_name (~> 0.5)
     http-form_data (2.1.0)
     http_accept_language (2.1.1)
-    http_parser.rb (0.6.0)
     httplog (1.0.2)
       colorize (~> 0.8)
       rack (>= 1.0)
@@ -675,6 +681,7 @@ DEPENDENCIES
   htmlentities (~> 4.3)
   http (~> 3.2)
   http_accept_language (~> 2.1)
+  http_parser.rb (~> 0.6)!
   httplog (~> 1.0)
   i18n-tasks (~> 0.9)
   idn-ruby