Monley patch HTTP.rb to handle PURGE requests

Until httprb/http#757 is merged

app/lib/request.rb

@@ -117,7 +117,7 @@ def add_headers(new_headers)
 
   def perform
     begin
-      response = http_client.public_send(@verb, @url.to_s, @options.merge(headers: headers))
+      response = http_client.request(@verb, @url.to_s, @options.merge(headers: headers))
     rescue => e
       raise e.class, "#{e.message} on #{@url}", e.backtrace[0]
     end

config/application.rb

@@ -51,6 +51,7 @@
 require_relative '../lib/active_record/database_tasks_extensions'
 require_relative '../lib/active_record/batches'
 require_relative '../lib/simple_navigation/item_extensions'
+require_relative '../lib/http_extensions'
 
 Dotenv::Railtie.load
 

lib/http_extensions.rb

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+# Monkey patching until https://github.com/httprb/http/pull/757 is merged
+unless HTTP::Request::METHODS.include?(:purge)
+  module HTTP
+    class Request
+      METHODS = METHODS.dup.push(:purge).freeze
+    end
+  end
+end