Removed nokogiri version pin

Author: johntopleyons

app/Gemfile

@@ -5,6 +5,6 @@ source 'https://rubygems.org'
 gem 'feedjira'
 gem 'google-cloud-firestore'
 gem 'json'
-gem 'nokogiri', '>= 1.13.4'
+gem 'nokogiri'
 gem 'rest-client'
 gem 'sanitize'

app/Gemfile.lock

@@ -23,8 +23,8 @@ GEM
     faraday-em_synchrony (1.0.0)
     faraday-excon (1.1.0)
     faraday-httpclient (1.0.1)
-    faraday-multipart (1.0.3)
-      multipart-post (>= 1.2, < 3)
+    faraday-multipart (1.0.4)
+      multipart-post (~> 2)
     faraday-net_http (1.0.1)
     faraday-net_http_persistent (1.2.0)
     faraday-patron (1.0.0)
@@ -118,7 +118,7 @@ DEPENDENCIES
   feedjira
   google-cloud-firestore
   json
-  nokogiri (>= 1.13.4)
+  nokogiri
   rest-client
   sanitize