fix: add missing requires for pact/errors

Author: bethesque

lib/pact/hal/entity.rb

@@ -1,6 +1,7 @@
 require 'uri'
 require 'delegate'
 require 'pact/hal/link'
+require 'pact/errors'
 
 module Pact
   module Hal

lib/pact/pact_broker/fetch_pacts.rb

@@ -1,6 +1,7 @@
 require 'pact/hal/entity'
 require 'pact/hal/http_client'
 require 'pact/provider/pact_uri'
+require 'pact/errors'
 
 module Pact
   module PactBroker

lib/pact/pact_broker/fetch_pending_pacts.rb

@@ -1,6 +1,7 @@
 require 'pact/hal/entity'
 require 'pact/hal/http_client'
 require 'pact/provider/pact_uri'
+require 'pact/errors'
 
 module Pact
   module PactBroker

lib/pact/provider/configuration/pact_verification_from_broker.rb

@@ -1,6 +1,7 @@
 require 'pact/shared/dsl'
 require 'pact/provider/world'
 require 'pact/pact_broker/fetch_pacts'
+require 'pact/errors'
 
 module Pact
   module Provider