Update nokogiri

Fixes a serious security vuln

Gemfile.lock

@@ -4,7 +4,7 @@ PATH
     manifique (0.1.0)
       faraday (~> 0.9.2, < 0.10.0)
       faraday_middleware (~> 0.12.2)
-      nokogiri (~> 1.8)
+      nokogiri (~> 1.10.4)
 
 GEM
   remote: https://rubygems.org/
@@ -42,11 +42,11 @@ GEM
       ruby_dep (~> 1.2)
     lumberjack (1.0.13)
     method_source (0.9.0)
-    mini_portile2 (2.3.0)
-    multipart-post (2.0.0)
+    mini_portile2 (2.4.0)
+    multipart-post (2.1.1)
     nenv (0.3.0)
-    nokogiri (1.8.4)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.10.4)
+      mini_portile2 (~> 2.4.0)
     notiffany (0.1.1)
       nenv (~> 0.1)
       shellany (~> 0.0)
@@ -94,4 +94,4 @@ DEPENDENCIES
   webmock (~> 3.4.2)
 
 BUNDLED WITH
-   1.16.2
+   1.17.2

manifique.gemspec

@@ -32,5 +32,5 @@ Gem::Specification.new do |spec|
 
   spec.add_runtime_dependency "faraday", "~> 0.9.2", "< 0.10.0"
   spec.add_runtime_dependency "faraday_middleware", "~> 0.12.2"
-  spec.add_runtime_dependency "nokogiri", "~> 1.8"
+  spec.add_runtime_dependency "nokogiri", "~> 1.10.4"
 end